1. From the Department of Medicine (D.M.H), Division of Cardiovascular Diseases, Department of Medicine (M.M.R., Y.G., V.L.R.), Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minn (S.A.W., V.L.R.), Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Medical School (Y.G.), Tel Aviv University, Tel Aviv, Israel.