1. From the Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan (K.K.)
2. Daiichi Sankyo, Co, Ltd, Tokyo, Japan (M.I., Y.O., M.S.)
3. Keio University, Yokohama, Japan (I.S.)
4. Life Planning Center Foundation, Tokyo, Japan (T.K.)
5. Department of Biostatistics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Japan (S.T.)
6. Shin-Oyama City Hospital, Japan (K.S.).