1 From the Division of Neurology (E.A.Y.), Department of Pediatrics, Division of Neuroscience and Mental Health, SickKids Research Institute, The Hospital for Sick Children, and University of Toronto, Ontario, Canada; and Department of Neurology (I.N.), Tohoku Medical and Pharmaceutical University, Sendai, Japan. ann.yeh@sickkids.ca.
2 From the Division of Neurology (E.A.Y.), Department of Pediatrics, Division of Neuroscience and Mental Health, SickKids Research Institute, The Hospital for Sick Children, and University of Toronto, Ontario, Canada; and Department of Neurology (I.N.), Tohoku Medical and Pharmaceutical University, Sendai, Japan.