Affiliation: | Department of Internal Medicine, St. Boniface General Hospital, Winnipeg; , Department of Internal Medicine, QEII Health Sciences Centre, Halifax; , Department of Pathology and Laboratory Medicine, Sunnybrook Health Sciences Centre, Toronto; , Department of Surgery, Sunnybrook Health Sciences Centre, Toronto; , Transfusion Medicine, Canadian Blood Services Head Office, Ottawa; , Departments of Physiology, Anesthesia and Critical Care, St. Michael's Hospital, Toronto; , Department of Medicine, Foothills Hospital, Calgary; , Department of Pediatrics, Sainte-Justine Hospital, Montreal; , and Departments of Surgery and Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto |