Faizan Khan1, Marc Carrier2, Marc Rodger2. 1. School of Epidemiology, Public Health & Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada2Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. 2. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada3Thrombosis Program, Division of Hematology, Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada.