From the Department of Child Neurology (M.W.S, I.V.d.W., F.E.J, K.P.B.), Member of EpiCARE ERN, University Medical Center Utrecht, Utrecht; Department of (Neuro)Pathology (E.A.), Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam; Stichting Epilepsie Instellingen Nederland (SEIN) (E.A.), Heemstede, The Netherlands; Department of Epileptology (C.H., A.R., R.S.); Department of Neurosurgery (A.G.), University of Bonn Medical Center, Germany; Department of Neurosurgery (A.G.), Epilepsy Center Hessen, Philipps University, Marburgy; Department of Neuropathology (A.J.B.), University of Bonn Medical Center, Germany; Department of Functional Neurology and Epileptology (Sylvain Rheims, H.C.), Hospices Civils de Lyon and University of Lyon; Lyon's Neurosciences Research Center (INSERM U1028 / CNRS UMR5292) (Sylvain Rheims, Catenoix Hélène), France; UCL Queen Square Institute of Neurology, Department of Clinical and Experimental Epilepsy and National Hospital for Neurology and Neurosurgery (J.S.D., J.D.T.); Developmental Biology and Cancer Programme (T.S.J.), UCL Great Ormond Street Institute of Child Health and the Department of Histopathology, Great Ormond Street Hospital for Children, London; UCL- NIHR BRC Great Ormond Street Institute of Child Health (J.H.C.), Great Ormond Street Hospital for Children, Lingfield, United Kingdom; Kuopio Epilepsy Center (R.K., T.R.), Kuopio University Hospital and University of Eastern Finland; Department of Pathology (R.K., T.R.), Kuopio University Hospital and University of Eastern Finland, Member of EpiCARE ERN, Kuopio, Finland; Hospital Sainte-Anne (F.C., B.C.D.), GHU-Paris, France; IRCCS NEUROMED (G.D.G., V.E.), Pozzilli (IS), Italy; Department of Neurosurgery (V.E.), Sapienza University of Rome, Italy; Department of Clinical Neuropathology (Istvan Bodi, M.H.), King's College Hospital NHS Foundation Trust, Academic Neuroscience Center, Denmark Hill, King's College Hospital, London, United Kingdom; Department of Epileptology (Krankenhaus Mara) (C.G.B., T.C.), Medical School, Campus Bielefeld-Bethel, Bielefeld University; Department of Neuropathology (R.C.); Epilepsy Center (H.M.H.), University Hospital Erlangen, Germany; Department of Neurology (P.M., A.K.), Motol Epilepsy Center, Second Medical Faculty, Charles University, Motol University Hospital, Prague, Czech Republic; Center for Pediatric Neurology, Neurorehabilitation, and Epileptology (T.P., M.K.), Schoen-Clinic, Vogtareuth, Germany; Research Institute "Rehabilitation, Transition, Palliation" (M.K.), PMU Salzburg, Austria; Department of Neurology I (T.J.V.O.), Neuromed Campus, Kepler Universitätsklinikum; Faculty of Medicine (T.J.V.O., M.A.), Johannes Kepler University; Department of Neurosurgery (M.A.), Neuromed Campus, Kepler Universitätsklinikum, Linz, Austria; Pediatric Neurosurgery Department (M.C.), Foundation Rothschild Hospital, Paris, France; Epilepsy Center (S.N., E.K.), Department of Neurology, Ludwig-Maximilians University, Munich, Germany; Epilepsy Centre (A.S.-B.); Department of Neurosurgery (C.F.S.), University Hospital, Freiburg, Germany; Department of Neurology (C.O.), Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Turkey; Swiss Epilepsy Center and Department of Neurology (K.K.), University Hospital, Zurich, Switzerland; Neuroscience Department (Renzo Guerrini, C.B.), Pathology Unit (A.M.B.), and Neurosurgery Department (F.G.), Meyer Children's Hospital IRCCS, Florence, Italy; University of Florence (Renzo Guerrini, C.B., F.G.), Florence, Italy; Epilepsy Center Frankfurt Rhine-Main (F.R.), Department of Neurology, and LOEWE Center for Personalized Translational Epilepsy Research (CePTER), Goethe University Frankfurt, Frankfurt am Main; Department of Neurology (F.R., K.M.), Epilepsy Center Hessen, Philipps University, Marburg, Germany; Epilepsy Unit (Rita Garbelli, F.D.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy; Department of Pediatric Neurology (P.K., B.S.), Motol Epilepsy Center, Second Medical Faculty, Charles University, Motol University Hospital, Prague, Czech Republic; Department of Pediatric Clinical Epileptology (A.A.A., J.T.), Sleep Disorders and Functional Neurology University Hospitals of Lyon (HCL), Lyon, France; Paediatric Epilepsy Unit (A.A.A., V.S.A.-A., J.R.), Child Neurology Department and Neurosurgery Department, Hospital Sant Joan de Déu, Barcelona, Spain; Department of Neurology (W.V.P.); Department of Neurosurgery (T.T.), University Hospital Leuven, Belgium; Laboratory of Neuropathology (J.P., I.M.L.D.A.), Department of Neurosciences and Mental Health, Department of Neurology, Hospital de Santa Maria (CHULN)Lisbon, Portugal; Clinical and Experimental Neurology (N.S., L.D.P.), Bambino Gesu' Children's Hospital, IRCCS, Rome, Italy; Center for Rare and Complex Epilepsies (M.F., T.S.), Department of Pediatrics and Adolescent Medicine; Department of Neurosurgery (K.R.), Medical University of Vienna, Austria; Epilepsy Program (R.T.D., A.G.-N.), Hospital Ruber Internacional, Madrid, Spain; Laboratory for Neuropathology (Savo Raicevic), Department of Pathology; Department for Epilepsy (A.J.R.), Clinic of Neurology, Clinical Center of Serbia, Belgrade; Medical Faculty (A.J.R.), University of Belgrade, Serbia; Department of Neurosurgery (O.S.), Academic Center for Epileptology; Department of Pathology (J.B.), Maastricht University Medical Center, The Netherlands; and University Hospital Erlangen (Ingmar Blumcke), Neuropathology, Erlangen, Germany.