Affiliation: | 1. Division of Neurology, Hospital for Sick Children, Toronto, Ontario, Canada;2. Division of Neurology, Department of Pediatrics, McMaster Children's Hospital, Hamilton, Ontario, Canada;3. Pediatrics and Neurology, Children's Hospital of Michigan, Wayne State University, Detroit, MI, USA;4. Department of Child Neurology, Okayama University Hospital, Okayama, Japan;5. Division of Neurosurgery, Hospital for Sick Children, Toronto, Ontario, Canada |