1. Department of Emergency Medicine (V.T.), University of Ottawa, Canada.
2. School of Epidemiology and Public Health (V.T., G.A.W., M.T.), University of Ottawa, Canada.
3. Ottawa Hospital Research Institute, The Ottawa Hospital, Canada (V.T., K.A., M.-J.N., L.H., M.M., M.T.).
4. Department of Emergency Medicine and School of Public Health, University of Alberta, Edmonton, Canada (B.H.R.).
5. Departments of Emergency Medicine, and Biomedical and Molecular Sciences, Queen’s University, Kingston, Canada (M.L.A.S.).
6. Department of Emergency Medicine, University of Calgary, Canada (A.D.M.).
7. Division of Cardiology, University of British Columbia, Vancouver, Canada (A.D.K.).