1. From the Health & Rehabilitation Sciences (Q.S.), The University of Western Ontario, Elborn College, London, Ontario, Canada; Stroke Program (Q.S., R.P., D.S., G.S.), Department of Medicine, St Michael's Hospital, University of Toronto, Toronto, Canada; Department of Health Policy (G.S.), Management and Evaluation, University of Toronto, Toronto, Canada; and Li Ka Shing Knowledge Institute (G.S.), Toronto, Canada.