1. Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
2. Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
3. Department of Clinical Epidemiology, Hyogo Medical University, Nishinomiya, Japan
4. Department of Cardiovascular Medicine, Kurashiki Central Hospital, Kurashiki, Japan
5. Department of Cardiology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
6. Division of Cardiovascular Medicine, Toho University Ohashi Medical Center, Tokyo, Japan
7. Department of Cardiovascular Center, Osaka Red Cross Hospital, Osaka, Japan
8. Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
9. Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
10. Cardiovascular Center, The Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
11. Department of Cardiology, Kinki University Hospital, Osaka, Japan
12. Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
13. Department of Cardiology, Japanese Red Cross Otsu Hospital, Otsu, Japan
14. Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
15. Department of General Internal Medicine, Kobe University Hospital, Kobe, Japan
16. Department of Cardiology, Tenri Hospital, Tenri, Japan
17. Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
18. Department of Cardiology, Shiga General Hospital, Moriyama, Japan
19. Department of Cardiology, Kansai Electric Power Hospital, Osaka, Japan
20. Department of Cardiology, Osaka Saiseikai Noe Hospital, Osaka, Japan
21. Division of Cardiology, Nara Hospital, Kinki University Faculty of Medicine, Ikoma, Japan
22. Department of Cardiovascular Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
23. Department of Cardiology, Kokura Memorial Hospital, Kokura, Japan
24. Department of Cardiology, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
25. Department of Cardiology, Koto Memorial Hospital, Higashiomi, Japan
26. Division of Cardiology, Shimada General Medical Center, Shimada, Japan
27. Department of Cardiology, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
28. Department of Cardiology, Hirakata Kohsai Hospital, Hirakata, Japan
29. Department of Cardiovascular Medicine, Sugita Genpaku Memorial Obama Municipal Hospital, Obama, Japan
30. Department of Cardiovascular Medicine, Shiga University of Medical Science, Otsu, Japan
31. Division of Cardiology, Kohka Public Hospital, Koka, Japan