1. Alberta Research Centre for Health Evidence and
2. Cochrane Child Health, Department of Pediatrics, Faculty of Medicine and Dentistry, Edmonton Clinic Health Academy, University of Alberta Edmonton, Canada;
3. Clinical Pharmacology and Therapeutics Laboratory, Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Lisboa, Portugal;
4. Department of Pediatrics, Hospital de Santa Maria, Avenida Professor Egas Moniz, Lisboa, Portugal;
5. Departments of Pediatrics, Emergency Medicine, and Physiology and Pharmacology, Cumming School of Medicine, Alberta Children’s Hospital Research Institute, University of Calgary and Alberta Children’s Hospital Foundation, Calgary, Canada;
6. Division of Emergency Medicine, Department of Pediatrics, Faculty of Medicine, University of Ottawa and Children’s Hospital of Eastern Ontario, Ottawa, Canada;
7. Children’s Hospital Research Institute of Manitoba and Department of Pediatrics and Child Health, Max Rudy School of Medicine, University of Manitoba, Winnipeg, Canada; and
8. Division of Pediatric Emergency Medicine, Department of Emergency Medicine, Faculty of Medicine and Dentistry, University of Alberta and Stollery Children’s Hospital, Edmonton, Canada