1. From the Department of Cardiovascular Medicine (Y.I., T. Shindo, K.M., M.S., Y.K., H. Morita, Y.O., T. Suzuki, H. Maekawa, R.N.) and the Department of Metabolic Diseases (J.O., S.I., K.T.), Graduate School of Medicine, The University of Tokyo, Tokyo; the 2nd Department of Internal Medicine (Y.S.), School of Medicine, Gunma University, Maebashi; the Department of Geriatric Medicine (M.A.), School of Medicine, Kyorin University, Tokyo; The National Cardiovascular Center Research Institute (K.K., N.M.)...