1. Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan (Y. Kirii, T.K., Y. Kasai, A.T., M.I., K.D.).
2. Department of Cardiology, Ise Municipal General Hospital, Ise, Japan (K.M., K.U., Y.E.).
3. Department of Cardiology, Toyohashi heart center, Toyohashi, Japan (M.T.).