Affiliation: | 1. Paediatric Neurology Department, Children's Hospital, London Health Science Centre, 800 Commissioners Road East, PO Box 5012, London, Ontario, Canada, N6A 5W9;2. Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada;3. Department of Neurology, Virginia Commonwealth University, Richmond, Virginia, USA |