1. Department of Psychology, University of Toronto, Toronto, Ontario, Canada
2. Program in Neuroscience & Mental Health, The Hospital for Sick Children, Toronto, Ontario, Canada
3. Dr Maureen Dennis passed away during the completion of this study.
4. Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
5. Department of Critical Care Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
6. Division of Emergency Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
7. Division of Pediatric Intensive Care, Department of Pediatrics, Children’s Hospital of Hamilton, Hamilton, Ontario, Canada
8. Department of Pediatrics, Clinical Neurological Sciences and Epidemiology, Schulich School of Medicine, Western University, London, Ontario, Canada
9. Department of Psychiatry, The Hospital for Sick Children, Toronto, Ontario, Canada