A regional massive hemorrhage protocol developed through a modified Delphi technique.

Journal

CMAJ open
ISSN: 2291-0026
Titre abrégé: CMAJ Open
Pays: Canada
ID NLM: 101620603

Informations de publication

Date de publication:
Historique:
entrez: 6 9 2019
pubmed: 6 9 2019
medline: 6 9 2019
Statut: epublish

Résumé

A massive hemorrhage protocol (MHP) enables rapid delivery of blood components in a patient who is exsanguinating pending definitive hemorrhage control, but there is variability in MHP implementation rates, content and compliance owing to challenges presented by infrequent activation, variable team performance and patient acuity. The goal of this project was to identify the key evidence-based principles and quality indicators required to develop a standardized regional MHP. A modified Delphi consensus technique was performed in the spring and summer of 2018. Panellists used survey links to independently review and rate (on a 7-point Likert scale) 43 statements and 8 quality indicators drafted by a steering committee composed of transfusion medicine specialists and technologists, and trauma physicians. External stakeholder input from all hospitals in Ontario was sought. Three rounds were held with 36 experts from diverse clinical backgrounds. Consensus was reached for 42 statements and 8 quality indicators. Additional modifications from external stakeholders were incorporated to form the foundation for the proposed MHP. This MHP template will provide the basis for the design of an MHP toolkit, including specific recommendations for pediatric and obstetrical patients, and for hospitals with limited availability of blood components or means to achieve definitive hemorrhage control. We believe that harmonization of MHPs in our region will simplify training, increase uptake of evidence-based interventions, enhance communication, improve patient comfort and safety, and, ultimately, improve patient outcomes.

Sections du résumé

BACKGROUND BACKGROUND
A massive hemorrhage protocol (MHP) enables rapid delivery of blood components in a patient who is exsanguinating pending definitive hemorrhage control, but there is variability in MHP implementation rates, content and compliance owing to challenges presented by infrequent activation, variable team performance and patient acuity. The goal of this project was to identify the key evidence-based principles and quality indicators required to develop a standardized regional MHP.
METHODS METHODS
A modified Delphi consensus technique was performed in the spring and summer of 2018. Panellists used survey links to independently review and rate (on a 7-point Likert scale) 43 statements and 8 quality indicators drafted by a steering committee composed of transfusion medicine specialists and technologists, and trauma physicians. External stakeholder input from all hospitals in Ontario was sought.
RESULTS RESULTS
Three rounds were held with 36 experts from diverse clinical backgrounds. Consensus was reached for 42 statements and 8 quality indicators. Additional modifications from external stakeholders were incorporated to form the foundation for the proposed MHP.
INTERPRETATION CONCLUSIONS
This MHP template will provide the basis for the design of an MHP toolkit, including specific recommendations for pediatric and obstetrical patients, and for hospitals with limited availability of blood components or means to achieve definitive hemorrhage control. We believe that harmonization of MHPs in our region will simplify training, increase uptake of evidence-based interventions, enhance communication, improve patient comfort and safety, and, ultimately, improve patient outcomes.

Identifiants

DOI: 10.9778/cmajo.20190042 PMID: 31484650 PMC: PMC6726467
pubmed: 31484650
pii: 7/3/E546
doi: 10.9778/cmajo.20190042
pmc: PMC6726467
doi:

Types de publication

Journal Article

Langues

eng

Pagination

E546-E561

Informations de copyright

Copyright 2019, Joule Inc. or its licensors.

Déclaration de conflit d'intérêts

Competing interests: For panellists and conflicts of interest, see Appendix 1 (available at www.cmajopen.ca/content/7/3/E546/suppl/DC1).

Références

Int J Obstet Anesth. 2016 Feb;25:9-16
pubmed: 26421705
Anesthesiology. 2008 Jan;108(1):71-7
pubmed: 18156884
BMJ Open. 2018 Apr 20;8(4):e020741
pubmed: 29678987
Palliat Med. 2017 Sep;31(8):684-706
pubmed: 28190381
Resuscitation. 2018 Dec;133:47-52
pubmed: 30261220
J Trauma Acute Care Surg. 2019 Mar;86(3):458-463
pubmed: 30444856
Vox Sang. 2017 May;112(4):336-342
pubmed: 28321880
Obstet Gynecol. 2017 Aug;130(2):366-373
pubmed: 28697109
Transfusion. 2016 Oct;56(10):2478-2486
pubmed: 27515056
Surgery. 2017 Mar;161(3):803-807
pubmed: 27814956
Injury. 2015 Jan;46(1):21-8
pubmed: 25452004
Arch Surg. 2008 Mar;143(3):296-304; discussion 304
pubmed: 18347278
J Trauma. 2009 Nov;67(5):1004-12
pubmed: 19901661
Transfusion. 2017 Oct;57(10):2477-2482
pubmed: 28703889
Lancet. 2017 May 27;389(10084):2105-2116
pubmed: 28456509
Transfusion. 2014 Jan;54(1):244-54
pubmed: 23581425
J Trauma Acute Care Surg. 2016 Oct;81(4):729-34
pubmed: 27488489
Acad Med. 2017 Oct;92(10):1491-1498
pubmed: 28678098
Injury. 2018 May;49(5):953-958
pubmed: 29338852
Transfusion. 2013 Jun;53(6):1328-34
pubmed: 23003345
Lancet. 2010 Jul 3;376(9734):23-32
pubmed: 20554319
Scand J Trauma Resusc Emerg Med. 2013 Oct 08;21:74
pubmed: 24103457
Intensive Care Med. 2015 Feb;41(2):239-47
pubmed: 25447807
Scand J Trauma Resusc Emerg Med. 2018 Jul 9;26(1):55
pubmed: 29986757
Transfusion. 2014 Jan;54(1):66-73; quiz 65
pubmed: 23672511
J Trauma Acute Care Surg. 2017 Jun;82(6S Suppl 1):S2-S8
pubmed: 28333835
J Trauma Acute Care Surg. 2014 Mar;76(3):561-7; discussion 567-8
pubmed: 24553520
Injury. 2013 May;44(5):587-92
pubmed: 23127727
Transfus Med Rev. 2011 Oct;25(4):293-303
pubmed: 21664104
Med Teach. 2017 Jan;39(1):14-19
pubmed: 27841062
Cochrane Database Syst Rev. 2012 Mar 14;(3):CD005011
pubmed: 22419303
J Trauma. 1987 Sep;27(9):1019-24
pubmed: 3656464
Vox Sang. 2016 Apr;110(3):253-7
pubmed: 26509839
J Trauma Acute Care Surg. 2017 Jul;83(1 Suppl 1):S66-S70
pubmed: 28383471
Transfusion. 2007 Dec;47(12):2197-201
pubmed: 17714422
Injury. 2018 Jan;49(1):15-19
pubmed: 29017765
J Trauma Acute Care Surg. 2017 Mar;82(3):605-617
pubmed: 28225743
Anesth Analg. 2017 Jan;124(1):9-11
pubmed: 27984308
Injury. 2019 Jan;50(1):46-53
pubmed: 30449459
JAMA. 2015 Feb 3;313(5):471-82
pubmed: 25647203
J Trauma Acute Care Surg. 2015 Jan;78(1):22-8; discussion 28-9
pubmed: 25539199
J Thorac Cardiovasc Surg. 2014 Oct;148(4):1647-55
pubmed: 24951020
J Trauma Acute Care Surg. 2017 Sep;83(3):464-468
pubmed: 28598906
Arch Surg. 2012 Feb;147(2):113-9
pubmed: 22006852
Blood Adv. 2018 Oct 9;2(19):2433-2442
pubmed: 30266818
Blood Transfus. 2015 Jul;13(3):484-97
pubmed: 26445308
Acad Med. 2015 Feb;90(2):246-56
pubmed: 25374041
Crit Care. 2011;15(6):242
pubmed: 22188866
J Trauma. 2007 Jan;62(1):142-6
pubmed: 17215745
Transfusion. 2018 Jan;58(1):151-157
pubmed: 29030954
Mil Med Res. 2018 Jun 30;5(1):22
pubmed: 29976254
Emerg Med J. 2011 Oct;28(10):870-2
pubmed: 21030544
Am J Clin Pathol. 2016 Jul;146(1):18-24
pubmed: 27357292
Anesth Analg. 2017 Dec;125(6):2045-2055
pubmed: 28857793
Transfusion. 2012 Nov;52(11):2488-9
pubmed: 23140430
Transfusion. 2018 Jul;58(7):1697-1707
pubmed: 29664144
PLoS One. 2011;6(6):e20476
pubmed: 21694759
Int J Surg. 2008 Jun;6(3):246-52
pubmed: 17574943
Neonatology. 2018;114(1):7-16
pubmed: 29550819
Injury. 2018 Jan;49(1):117-123
pubmed: 29183635
Scand J Trauma Resusc Emerg Med. 2017 Nov 10;25(1):109
pubmed: 29126452
Trials. 2014 Nov 19;15:450
pubmed: 25409738
Endoscopy. 2012 Aug;44(8):723-30
pubmed: 22752889
Crit Care Med. 2018 Jun;46(6):e552-e559
pubmed: 29517551
Crit Care. 2011;15(2):R83
pubmed: 21375741
Circulation. 2016 Oct 18;134(16):1152-1162
pubmed: 27654344
Transfusion. 2016 Feb;56(2):311-20
pubmed: 26442648
Simul Healthc. 2012 Jun;7(3):196-200
pubmed: 21937961
Health Technol Assess. 2013 Mar;17(10):1-79
pubmed: 23477634
J Crit Care. 2018 Feb;43:65-69
pubmed: 28846895
J Trauma Acute Care Surg. 2018 Oct;85(4):691-696
pubmed: 29985236
Br J Haematol. 2015 Feb;168(4):598-603
pubmed: 25283094
Crit Care Med. 2017 Aug;45(8):1311-1316
pubmed: 28537938
Transfusion. 2010 Dec;50(12):2547-52
pubmed: 20573070
Lancet. 2018 Jan 13;391(10116):125-132
pubmed: 29126600
Pediatr Surg Int. 2018 Dec;34(12):1353-1362
pubmed: 30324569
J Surg Educ. 2015 Jul-Aug;72(4):732-9
pubmed: 25817012
Eur J Trauma Emerg Surg. 2017 Jun;43(3):393-398
pubmed: 27117790
Anesth Analg. 2017 Jan;124(1):277-281
pubmed: 27749352
J Trauma Acute Care Surg. 2016 Sep;81(3):555-66
pubmed: 27280943
Curr Opin Crit Care. 2017 Dec;23(6):491-497
pubmed: 29035926
Crit Care. 2016 Apr 12;20:100
pubmed: 27072503
Transfusion. 2008 Jul;48(7):1318-24
pubmed: 18422846
J Emerg Med. 2016 Jun;50(6):868-874.e1
pubmed: 27017532
J Trauma. 2003 Jun;54(6):1127-30
pubmed: 12813333
Transfusion. 2017 May;57(5):1322-1324
pubmed: 28425601
Obstet Gynecol. 2018 Jan;131(1):143-149
pubmed: 29215522
JAMA Surg. 2017 Jun 1;152(6):574-580
pubmed: 28273299
Transfus Med. 2018 Dec;28(6):405-412
pubmed: 30325081
BMC Health Serv Res. 2018 Feb 17;18(1):122
pubmed: 29454340
Acta Anaesthesiol Scand. 2014 Aug;58(7):775-87
pubmed: 24828210
J Clin Gastroenterol. 1990 Feb;12(1):5-9
pubmed: 2303688
J Trauma Acute Care Surg. 2017 Jul;83(1):19-24
pubmed: 28452870
Gynecol Obstet Fertil Senol. 2017 Dec;45(12S):S8-S21
pubmed: 29113879
Scand J Trauma Resusc Emerg Med. 2011 Oct 21;19:59
pubmed: 22017799
Crit Care. 2016 Apr 20;20(1):107
pubmed: 27095272
Crit Care. 2014 Jul 02;18(4):313
pubmed: 25043066
Ther Apher Dial. 2013 Dec;17(6):640-2
pubmed: 24330561
J Trauma. 2010 Jun;68(6):1498-505
pubmed: 20539192
Obstet Gynecol. 2005 Dec;106(6):1228-34
pubmed: 16319245
Int J Obstet Anesth. 2019 May;38:37-45
pubmed: 30509680
CMAJ. 2013 Sep 3;185(12):E583-9
pubmed: 23857856

Auteurs

Jeannie L Callum (JL)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont. Jeannie.Callum@sunnybrook.ca.

Calvin H Yeh (CH)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Andrew Petrosoniak (A)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Mark J McVey (MJ)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Stephanie Cope (S)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Troy Thompson (T)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Victoria Chin (V)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Keyvan Karkouti (K)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Avery B Nathens (AB)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Kimmo Murto (K)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Suzanne Beno (S)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Jacob Pendergrast (J)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Andrew McDonald (A)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Russell MacDonald (R)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Neill K J Adhikari (NKJ)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Asim Alam (A)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Donald Arnold (D)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Lee Barratt (L)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Andrew Beckett (A)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Sue Brenneman (S)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Hina Razzaq Chaudhry (HR)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Allison Collins (A)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Margaret Harvey (M)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Jacinthe Lampron (J)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Clarita Margarido (C)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Amanda McFarlan (A)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Barto Nascimento (B)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Wendy Owens (W)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Menaka Pai (M)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Sandro Rizoli (S)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Theodora Ruijs (T)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Robert Skeate (R)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Teresa Skelton (T)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Michelle Sholzberg (M)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Kelly Syer (K)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Jami-Lynn Viveiros (JL)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Josee Theriault (J)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Alan Tinmouth (A)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Rardi Van Heest (R)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Susan White (S)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Michelle Zeller (M)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Katerina Pavenski (K)

Departments of Laboratory Medicine and Molecular Diagnostics (Callum, Chin, Viveiros), Surgery (Nathens, Nascimento), Emergency Services (McDonald), Critical Care Medicine (Adhikari) and Anesthesia (Margarido), Sunnybrook Health Sciences Centre; Departments of Laboratory Medicine and Pathobiology (Callum, Pendergrast, Skeate, Pavenski), Anesthesia (McVey, Karkouti, Alam, Margarido), Surgery (Nathens, Nascimento, Rizoli) and Paediatrics (Beno), University of Toronto; Division of Emergency Medicine (Yeh, Petrosoniak, McDonald, MacDonald), Department of Medicine, University of Toronto; Departments of Emergency Medicine (Petrosoniak), Surgery (Rizoli) and Laboratory Medicine (Sholzberg, Pavenski), St. Michael's Hospital; Department of Anesthesia and Pain Medicine (McVey, Skelton), The Hospital for Sick Children; Ontario Regional Blood Coordinating Network (Cope, Thompson, Collins, Owens); Department of Anesthesia and Pain Management (Karkouti), Sinai Health System, University Health Network, and Women's College Hospital, Toronto, Ont.; Department of Anesthesiology and Pain Medicine (Murto), Children's Hospital of Eastern Ontario; Department of Anesthesiology and Pain Medicine (Murto), University of Ottawa, Ottawa, Ont.; Paediatric Emergency Medicine (Beno), The Hospital for Sick Children; Department of Clinical Pathology (Pendergrast), University Health Network, Toronto, Ont.; Ornge Transport Medicine (McDonald, MacDonald), Mississauga, Ont.; Interdepartmental Division of Critical Care Medicine (Adhikari), University of Toronto; Department of Anesthesia (Alam, Arnold), North York General Hospital, Toronto, Ont.; McMaster Centre for Transfusion Research (Arnold, Pai, Zeller); Departments of Medicine (Pai, Zeller) and Pathology and Molecular Medicine (Pai), McMaster University, Hamilton, Ont.; Canadian Blood Services (Arnold, Skeate, White); St. Michael's Hospital (Barratt, Chaudhry, Harvey), Toronto, Ont.; Department of Surgery (Beckett), McGill University, Montréal, Que.; Canadian Forces Health Services (Beckett), Ottawa, Ont.; Sunnybrook Health Sciences Centre (Brenneman), Toronto, Ont.; General Surgery, Acute Care and Trauma (Lampron), The Ottawa Hospital; Departments of Surgery (Lampron), Medicine (Tinmouth) and Laboratory Medicine and Pathology (Tinmouth), Faculty of Medicine, University of Ottawa, Ottawa, Ont.; Trauma Program and Quality Assurance (McFarlan), St. Michael's Hospital, Toronto, Ont.; Departments of Pathology (Ruijs) and Surgery (Van Heest), William Osler Health Centre, Brampton, Ont.; Lakeridge Health Corporation (Syer), Oshawa, Ont.; Department of Critical Care (Theriault), Health Sciences North, Sudbury, Ont.; Division of Hematology (Tinmouth), The Ottawa Hospital; University of Ottawa Centre for Transfusion Research (Tinmouth), Ottawa Hospital Research Institute, Ottawa, Ont.; Canadian Blood Services (Zeller), Ancaster, Ont.

Classifications MeSH