1. From the Division of Cardiology (H.W., Y.A.) and Department of Public Health (N.T.), Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Niigata Association for Comprehensive Health Promotion and Research, Niigata, Japan (T.W., S.S.); and Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tenn (H.W., D.D., D.M.R.).