1. From Division of Geriatric Medicine and Meyers Primary Care Institute (J.S.S.), University of Massachusetts Medical School, Worcester, Mass; Intramural Research Program, Laboratory of Epidemiology (J.S.S., M.E.G., L.J.L.), Demography and Biometry, National Institute on Aging, Bethesda, Md; Icelandic Heart Association (S.S., M.K.J., G.E., P.V.J., O.K., V.G.), Kopavogur, Iceland; University of Pittsburgh, Pittsburgh (O.L.), Pa; Department of Radiology (M.A.v.B.), Leiden University Medical Center,...