1. Department of Cardiology, Hyogo Prefectural Amagasaki General Medical Center
2. Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University
3. Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital
4. Department of Clinical Epidemiology, Hyogo College of Medicine
5. Department of Cardiovascular Medicine, Kurashiki Central Hospital
6. Department of Cardiology, Kinki University Hospital
7. Department of Cardiology, Kokura Memorial Hospital
8. Department of Cardiology, Japanese Red Cross Otsu Hospital
9. Department of Cardiology, National Hospital Organization Kyoto Medical Center
10. Department of Cardiovascular Center, Osaka Red Cross Hospital
11. Department of Cardiology, Japanese Red Cross Wakayama Medical Center
12. Cardiovascular Center, The Tazuke Kofukai Medical Research Institute, Kitano Hospital
13. Department of Cardiology, Shizuoka General Hospital
14. Department of Cardiology, Osaka Saiseikai Noe Hospital
15. Department of Cardiology, Shizuoka City Shizuoka Hospital
16. Division of Cardiology, Shimada Municipal Hospital
17. Department of Cardiology, Kishiwada City Hospital
18. Department of Cardiology, Tenri Hospital
19. Department of Cardiology, Nishikobe Medical Center
20. Division of Cardiology, Nara Hospital, Kinki University Faculty of Medicine
21. Department of Cardiology, Koto Memorial Hospital
22. Department of Cardiology, Hirakata Kohsai Hospital