1. From the Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL (Y.Y., H.N., N.A., K.L., P.G., D.M.L.-J.); Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, MD (J.P.R.); Laboratory of Epidemiology, Demography, and Biometry, National Institute on Aging, Bethesda, MD (L.J.L.); and Department of Psychiatry, University of California, San Francisco (K.Y.).