1. Department of Pediatrics, Children’s Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada
2. Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada3Department of Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada4Departments of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada5Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
3. Children’s Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
4. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada8School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
5. Department of Pediatrics, Stollery Children’s Hospital, University of Alberta, Edmonton, Alberta, Canada
6. Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
7. Department of Pediatrics, IWK Health Centre, Dalhousie University, Halifax, Nova Scotia, Canada12Department of Pediatrics, Alberta Children’s Hospital, University of Calgary, Calgary, Alberta, Canada
8. Department of Pediatrics, Montreal Children’s Hospital, McGill University, Montreal, Quebec, Canada
9. Children’s Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada14Department of Family Medicine, McGill University, Montreal, Quebec, Canada
10. Department of Pediatrics, University of Minnesota Medical School, Minneapolis16Department of Emergency Medicine, University of Minnesota Medical School, Minneapolis