1. From the Department of Cardiology, Keio University School of Medicine, Tokyo, Japan (Yoshiyasu Aizawa, S.T., M. Sano, T. Kimura, N.N., K. Fukumoto, Y.T., K.T., M.M., K. Fukuda); Department of Internal Medicine and Memorial Heart Center, Iwate Medical University, Iwate, Japan (T. Komatsu); Tachikawa Hospital, Tokyo, Japan (H.M.); International University of Health and Welfare, Mita Hospital, Tokyo, Japan (S.O.); Saiseikai Kawaguchi General Hospital, Saitama, Japan (T.F.); and Division of Research and...