Affiliation: | 1. Thrombosis Program, Division of Hematology, Department of Medicine, University of Ottawa, Ottawa;2. Division of Hematology, Department of Medicine, University of Western Ontario, London;3. Clinical Epidemiology Program, Ottawa Hospital Research Institute, The Ottawa Hospital, Ottawa, Ontario, Canada;4. Department of Internal Medicine and Chest Diseases and EA 3878, Brest University Hospital, Brest, France |