1 Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, and Program in Genetics & Genome Biology, SickKids Research Institute, Toronto, ON, Canada.
2 Department of Paediatrics, University of Toronto, Toronto, ON, Canada.
3 Departments of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
4 Adult Genetic Epilepsy (AGE) Program, Toronto Western Hospital, Krembil Brain Institute, Toronto, ON, Canada.
5 Division of Neurology, Department of Medicine, University of Toronto, Toronto, ON, Canada.