1. Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Japan (S.M., M.G., T.S.).
2. Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, Hyogo (A.K.).
3. Department of Cardiology, National Hospital Organization Higashihiroshima Medical Center, Hiroshima, Japan (H.J.).
4. Department of Cardiology, Edogawa Hospital, Tokyo, Japan (T.K.).
5. Department of Cardiology, Hyogo Prefectural Amagasaki General Medical Center, Japan (K.Y.).
6. Department of Cardiovascular Medicine, Faculty of Medical Sciences, University of Fukui, Japan (M. Mukai, H.T.).
7. Department of Cardiology, Japanese Red Cross Yokohama City Bay Hospital, Kanagawa (Y.S., Y.Y.).
8. Department of Cardiology, Yamanashi Kosei Hospital, Japan (T.A.).
9. Department of Cardiovascular Medicine, Sendai City Hospital, Miyagi, Japan (E.S.).
10. Department of Cardiology, Ome Municipal General Hospital, Tokyo, Japan (K.Y., Y.O.).
11. Department of Cardiology, Naha City Hospital, Okinawa (M. Manita).
12. Department of Cardiovascular Medicine, Kitasato University School of Medicine, Kanagawa (H.F.).
13. Department of Cardiovascular Biology and Medicine, Juntendo University, Tokyo, Japan (H.H.).
14. Department of Cardiology, National Hospital Organization Tokyo Medical Center, Japan (K.T.).
15. Department of Cardiology, Okitama Public General Hospital, Yamagata, Japan (T.I.).
16. Department of Cardiology, Urasoe General Hospital, Okinawa (S.C.).
17. Cardiovascular Center, Tachikawa General Hospital, Niigata, Japan (A.S.).
18. Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan (Y.S., J.N.).
19. Department of Cardiology and Geriatrics, Kochi University, Kerala, India (K.S., T. Hirota).
20. Department of Cardiology, Hiratsuka Kyosai Hospital, Kanagawa (S.I., N.K.).
21. Department of Cardiology, Japanese Red Cross Musashino Hospital, Tokyo (Y.I., O.I., T. Horie, Y.N.).
22. Cardiovascular Center, Tsuchiura Kyodo Hospital, Ibaraki, Japan (N.M., H.H.).