1. Department of Health Sciences, Carleton University, Ottawa, Ontario, Canada
2. Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
3. Consumer and Hazardous Products Safety Directorate, Health Canada, Ottawa, Ontario, Canada
4. Division of Paediatric Medicine, Department of Paediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
5. Division of Emergency Medicine, Department of Paediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
6. Division of Adolescent Medicine, Department of Paediatrics, Sainte-Justine University Hospital Centre, Montréal, Québec, Canada