1. Department of Paediatrics, Division of Emergency Medicine, Hospital for Sick Children, Toronto, Canada;
2. Department of Pediatric Emergency Medicine, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel;
3. Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel;
4. Departments of Medicine and Emergency Medicine, School of Medicine, University of Colorado, Aurora, CO, USA;
5. University of Texas Southwestern Medical School, Dallas, TX, USA;
6. American College of Medical Toxicology, Phoenix, AZ, USA;
7. Department of Paediatrics, Clinical Pharmacology and Toxicology, Hospital for Sick Children, Toronto, Canada