1. CHU de Québec-Université Laval Research Centre, Université Laval, Québec, Canada.
2. VITAM-Centre de recherche en santé durable, Université Laval, Québec, Canada.
3. Department of Emergency Medicine, Université de Montréal, Quebec, Canada.
4. Department of Emergency Medicine, McGill University, Québec, Canada.
5. Department of Emergency Medicine, University of Toronto, Ontario, Canada.
6. Department of Emergency Medicine, University of Calgary, Alberta, Canada.
7. Department of Epidemiology and Preventive Medicine, Monash University Melbourne, Victoria, Australia.
8. Department of Emergency Medicine, Ottawa Hospital Research Institute, Ontario, Canada.