1. From the Departments of Neurology (K.A.W., R.C.H.) and Epidemiology (R.F.G.), Johns Hopkins University School of Medicine, Baltimore, MD; Section of Cardiology (R.C.H., C.M.B.), Baylor College of Medicine, Houston; Center for Cardiovascular Disease Prevention (R.C.H., C.M.B.), Houston Methodist DeBakey Heart and Vascular Center, TX; Division of Epidemiology and Community Health (A.R.F.), School of Public Health, University of Minnesota, Minneapolis; Departments of Neurology (D.S.K.) and Radiology (C...