1. Schwartz/Reisman Emergency Medicine Institute, Sinai Health System Toronto Ontario Canada
2. Division of Emergency Medicine Department of Family and Community Medicine University of Toronto Toronto Ontario Canada
3. Department of Health Research Methods, Evidence and Impact McMaster University Hamilton Ontario Canada
4. Ontario Health (Cancer Care Ontario) Ministry of Health Toronto Ontario Canada
5. Sunnybrook Research Institute Toronto Ontario Canada
6. Division of Emergency Medicine Department of Medicine McMaster University Hamilton Ontario Canada
7. Division of General Internal Medicine and Division of Clinical Epidemiology University Hospitals of Geneva Geneva Switzerland
8. Department of Emergency Medicine University of Alberta Edmonton Alberta Canada
9. Department of Medicine McMaster University Hamilton Ontario Canada