1. Hyogo Prefecture Amagasaki General Medical Center and Ookuma Hospital, Japan (H.F.).
2. Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan (M.N., Y.I.).
3. Clinical Research Support Center, University of Miyazaki Hospital, Japan (M.N.).
4. Department of Cardiology, Sakurabashi Watanabe Hospital, Osaka, Japan (Y.I.).