1Department of Emergency Medicine, University of British Columbia, Vancouver, BC Canada
2Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC Canada
3Department of Pediatrics, University of Alberta, Edmonton, AB Canada
4Department of Emergency Medicine, University of Alberta, Edmonton, AB Canada
5Division of Emergency Medicine, University of Toronto, Toronto, ON Canada
6University Health Network, Toronto, ON Canada
7Division of Emergency Medicine, London Health Sciences Centre, London, ON Canada
8Schulich School of Medicine and Dentistry, Western University, London, ON Canada
9Division of Emergency Medicine, McMaster University, Hamilton, ON Canada
10Hamilton Health Sciences, Hamilton, ON Canada
11Department of Family Medicine and Emergency Medicine, Université Laval, Quebec, QC Canada
12Centre de recherche du Centre intégré de santé et de services sociaux de Chaudière-Appalaches, Levis, QC Canada
13Centre de Recherche, CHU de Québec, Université Laval, Quebec, QC Canada
14VITAM (Centre de recherche en santé durable), Quebec, QC, Canada
15Department of Emergency Medicine, Dalhousie Medicine New Brunswick, Saint John, NB Canada
16Department of Emergency Medicine, Saint John Regional Hospital, Saint John, NB Canada
17Department of Emergency Medicine, University of Saskatchewan, Saskatoon, SK Canada
18Department of Emergency Medicine, St Michael’s Hospital, Unity Health Toronto, Toronto, ON Canada
19Department of Emergency Medicine, University of Manitoba, Winnipeg, MB Canada
20Section of Critical Care Medicine, University of Manitoba, Winnipeg, MB Canada