Affiliation: | 1. Division of General Internal Medicine, University of Calgary, Calgary, Alberta, Canada;2. Department of Family Medicine, McGill University, Montreal, Quebec, Canada;3. Department of Pediatric Emergency Medicine, IWK Health Center and Dalhousie University, Halifax, Nova Scotia, Canada;4. Department of Emergency Medicine, University of Ottawa and Ottawa Hospital Research Institute, Ottawa, Ontario, Canada;5. Department of Emergency Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada;6. Division of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, Ontario, Canada;7. Department of Emergency Medicine, Skilled Clinician Program, Undergraduate Medical Education, Dalhousie University, Halifax, Nova Scotia, Canada;8. Department of Emergency Medicine, Memorial University of Newfoundland, St John's, Newfoundland, Canada;9. Division of General Internal Medicine, University of Alberta, Edmonton, Alberta, Canada;10. Department of Emergency Medicine, McGill University, Montreal, Quebec, Canada Department of Emergency Medicine, Sherbrooke University, Sherbrooke, Quebec, Canada;11. Division of General Internal Medicine, University of Toronto, Toronto, Ontario, Canada;12. Department of Diagnostic Imaging, Dalhousie University, Halifax, Nova Scotia, Canada;13. Department of Emergency Medicine, Thunder Bay Regional Health Sciences Center, North Ontario School of Medicine, Thunder Bay, Ontario, Canada;14. Department of Emergency Medicine, University of Manitoba, Winnipeg, Manitoba, Canada;15. Departments of Family Medicine and Emergency Medicine, Laval University, Quebec, Quebec, Canada;16. Department of Emergency Medicine, Western University, London, Ontario, Canada;17. Department of Medicine, Education, University of Ottawa, Ottawa, Ontario, Canada;18. Department of Family Medicine, McMaster University, Hamilton, Ontario, Canada;19. Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada |