| Affiliation: | 1. Division of Emergency Medicine, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, Department of Pediatrics and Community Health Sciences, University of Calgary, Calgary, Alberta;2. Division of Emergency Medicine, Alberta Children's Hospital, Department of Pediatrics, University of Calgary, Calgary, Alberta;3. Division of Emergency Medicine, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, Department of Pediatrics, Physiology and Pharmacology, University of Calgary, Calgary, Alberta;4. Department of Pediatrics, University of Alberta, Alberta Research Center for Health Evidence, Edmonton, Alberta;5. Division of Pediatric Medicine, Hospital for Sick Children, Department of Pediatrics and Health Policy, Management and Evaluation, University of Toronto and Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada |
