1. Divisions of Cardiology and Clinical Epidemiology, Jewish General Hospital-McGill University, Montreal, QC, Canada H3T 1E2
2. Lady Davis Institute for Medical Research, Jewish General Hospital-McGill University, Montreal, QC, Canada H3T 1E2
3. Department of Emergency Medicine, McGill University Health Center, Montreal, QC, Canada H4A 3J1
4. Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, QC, Canada H3A 1A2
5. Institute of Circulatory and Respiratory Health, Canadian Institutes of Health Research, Ottawa, ON, Canada K1A 0W9
6. Montreal Heart Institute, University of Montreal, Montreal, QC, Canada H1T 1C8