1. Department of Medicine, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada
2. Department of Medicine, McMaster University, Hamilton, Ontario, Canada
3. Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
4. Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
5. Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
6. Department of Medicine, University of Toronto, Toronto, Ontario, Canada
7. Department of Medical Education, Saint John Regional Hospital, Saint John, New Brunswick, Canada