Affiliation: | 1. Departments of Medicine and Laboratory Medicine and Pathobiology, Institute of Health Policy Management and Evaluation, University of Toronto, Division of Hematology, Mount Sinai Hospital, Toronto, Ontario, Canada;2. Canadian Blood Services, Toronto, Ontario, Canada;3. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada;4. Department of Medicine, Université de Montréal, Montréal, Québec, Canada;5. Centre de Recherche du Centre Hospitalier Universitaire de Montréal, Montréal, Québec, Canada;6. Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada;7. Department of Obstetrics and Gynecology, University of Toronto, Division of Maternal Fetal Medicine, Mount Sinai Hospital, Toronto, Ontario;8. Institute for Clinical Evaluative Sciences, Ottawa, Ontario, Canada |