1. From the Stroke Research Program (G.S., N.B.), South East Toronto Regional Stroke Center, Division of Neurology, Department of Medicine, St Michael’s Hospital, University of Toronto, Toronto, Ontario, Canada; the Division of Neurology (R.C.), Montreal General Hospital, McGill University, Montreal, Quebec, Canada; the Division of Neurology (S.P., G.G.), Queen Elizabeth II Health Sciences Centre and Dalhousie University, Halifax, Nova Scotia, Canada; the Department of Neurology (J.M.), Jewish General...