1. From the Division of Clinical Pharmacology & Toxicology (D.G.H.), Department of Medicine, University of Toronto, Canada; the Cardiac Rehabilitation & Secondary Prevention Program (D.G.H.), Toronto Rehabilitation Institute, and Institute for Clinical Evaluative Sciences, Canada; the Stroke Prevention and Atherosclerosis Research Center (J.D.S.), Robarts Research Institute, London, Canada; and the Division of Clinical Pharmacology and Department of Clinical Neurological Sciences (J.D.S.),...