1. Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
2. Department of Psychology, University of Calgary, Calgary, Alberta, Canada
3. Department of Psychology, Alberta Children’s Hospital, Hotchkiss Brain Institute, Calgary, Alberta, Canada
4. Department of Anesthesiology, Perioperative, and Pain Medicine, University of Calgary, Calgary, Alberta, Canada
5. Department of Anesthesiology and Pain Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
6. Research Center of the Centre hospitalier de l’Université de Montréal, Montreal, Quebec, Canada
7. Department of Psychology, Université de Montréa, Montreal, Quebec, Canada
8. Department of Biomedical Sciences, Université de Montréal, Montreal, Quebec, Canada
9. Department of Health Sciences, Université du Québec en Abitibi-Témiscamingue, Rouyn-Noranda, Quebec, Canada
10. Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
11. Department of Anesthesiology & Pain Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
12. Department of Psychology, The Ottawa Hospital, Ottawa, Ontario, Canada
13. Clinical Epidemiology Program, The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
14. Departments of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
15. Department of Emergency Medicine, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
16. Women and Children’s Health Research Institute, University of Alberta, Edmonton, Alberta, Canada
17. Department of Pediatrics, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
18. Department of Pediatrics, Saskatchewan Health Authority, Saskatoon, Saskatchewan, Canada
19. Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
20. Centre for Addiction and Mental Health CYEA programme, Toronto, Ontario, Canada
21. Department of Anesthesia and Pain Medicine, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
22. Department of Anesthesia and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
23. Summer Research Student, Child Health Evaluative Sciences, the Hospital for Sick Children, Toronto, Ontario, Canada
24. Internal Medicine Residency Program, McMaster University, Hamilton, Ontario, Canada
25. Parent partner, British Columbia, Canada
26. Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada