BC Centre for Excellence in HIV/AIDS (Ulloa, Puskas, Yip, Zhang, Lima, Montaner, Guillemi, Barrios); John Ruedy Immunodeficiency Clinic (Stanley, Stone, Pedromingo), St. Paul's Hospital; Division of AIDS (Lima, Montaner), Department of Family Practice (Guillemi) and School of Population and Public Health (Barrios), University of British Columbia, Vancouver, BC.