1. Division of Pediatric Emergency Medicine, Department of Pediatrics, Montreal Children’s Hospital, McGill University Health Centre, Montreal, Quebec
2. T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
3. Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre hospitalier universitaire Sainte-Justine, Université de Montréal, Montreal, Quebec
4. Departments of Pediatrics and of Emergency Medicine, Section of Pediatric Emergency Medicine, Yale-New Haven Children’s Hospital, Yale School of Medicine, New Haven, Connecticut
5. Division of Emergency Medicine, Department of Pediatrics, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts