1. Professor, Deparment of Psychiatry, University of Toronto, Toronto, Ontario; Director, Tourette Syndrome Neurodevelpmental Clinic, University Health Network, Toronto, Ontario; Head, Neuropsychiatric Studies, Youthdale Treatment Centres, Toronto, Ontario
2. Clinical Professor, University of Alberta, Edmonton, Alberta; Director, Child and Family Psychiatry, Glenrose Rehabilitation Hospital, Edmonton, Alberta; Director, Child Psychiatry, Royal Alexandra Hospital, Edmonton, Alberta