^*Children's Hospital of Western Ontario, London Health Sciences Center, London, ON, Canada;

^†Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada;

^‡Brain and Mind Institute, Western University, London, ON, Canada;

^§Department of Neurology, Duke University Medical Center, Durham, North Carolina, U.S.A.; and

^‖Neurodiagnostic Center and Department of Veterans Affairs Medical Center, Durham, North Carolina, U.S.A.

The authors have no funding or conflicts of interest to disclose.