1. From the Department of Neurology (J.R.R., A.B., C.S.K., P.A.W., S.S.), School of Medicine and Department of Biostatistics (S.R.P., A.B.), School of Public Health at Boston University, MA; Department of Neurology, University of California, Davis (C.D.); Department of Neurology, Harvard Medical School, Boston, MA (A.V., S.M.-R.); and NHLBI’s Framingham Heart Study, Framingham, MA (J.R.R., S.R.P., A.B., C.S.K., P.A.W., S.S.).