1 From the Department of Pediatrics (Neurology) (E.A.Y.), SickKids Research Institute, Division of Neurosciences and Mental Health, Hospital for Sick Children, University of Toronto, Canada; and Department of Neurosciences (J.G.), University of California, San Diego. ann.yeh@sickkids.ca.
2 From the Department of Pediatrics (Neurology) (E.A.Y.), SickKids Research Institute, Division of Neurosciences and Mental Health, Hospital for Sick Children, University of Toronto, Canada; and Department of Neurosciences (J.G.), University of California, San Diego.