1. Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
2. Department of Cardiology, Kokura Memorial Hospital, Kitakyusyu, Japan
3. Department of Clinical Epidemiology, Hyogo College of Medicine, Nishinomiya, Japan
4. Department of Cardiovascular Medicine, Saga University, Saga, Japan
5. Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
6. Department of Cardiology, Kurashiki Central Hospital, Kurashiki, Japan
7. Department of Cardiology, Juntendo University Shizuoka Hospital, Izunokuni, Japan
8. Department of Cardiology, Ogaki Municipal Hospital, Ogaki, Japan
9. Department of Cardiology, Japanese Red Cross Nagoya Daini Hospital, Nagoya, Japan
10. Department of Cardiology, Minamino Cardiovascular Hospital, Hachioji, Japan
11. Department of Cardiology, Sendai Cardiovascular Center, Sendai, Japan
12. Department of Cardiology, Saiseikai Fukuoka General Hospital, Fukuoka, Japan
13. Department of Cardiology, Mitsubishi Kyoto Hospital, Kyoto, Japan
14. Department of Cardiology, Sakakibara Heart Institute, Fuchu, Japan
15. Department of Cardiology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
16. Department of Cardiology, Gifu Prefectural General Medical Center, Gifu, Japan
17. Department of Cardiology, Ehime Prefectural Central Hospital, Matsuyama, Japan
18. Department of Cardiology, Hoshi General Hospital, Koriyama, Japan
19. Department of Cardiology, Shizuoka General Hospital, Shizuoka, Japan
20. Division of Cardiology, Yokohama City University Medical Center, Yokohama, Japan
21. Department of Cardiology, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
22. Department of Cardiology, Chikamori Hospital, Kochi, Japan
23. Division of Cardiology, Saiseikai Kumamoto Hospital Cardiovascular Center, Kumamoto, Japan
24. Department of Cardiology, Mitsui Memorial Hospital, Tokyo, Japan
25. Department of Cardiology, Tokai University Hospital, Isehara, Japan
26. Hanaoka Seishu Memorial Cardiovascular Clinic, Sapporo, Japan
27. Department of Cardiology, Iwate Medical University Hospital, Morioka, Japan
28. Department of Cardiology, Teikyo University Hospital, Tokyo, Japan
29. Department of Cardiovascular Medicine, Shiga University of Medical Science, Otsu, Japan