1. Department of Cardiovascular Medicine; Graduate School of Medicine Kyoto University; Kyoto Japan
2. Department of Cardiovascular Medicine; Shiga Medical Center for Adult; Moriyama Shiga Japan
3. Division of Cardiology; Tenri Hospital; Nara Japan
4. Department of Cardiology; Kobe City Medical Center General Hospital; Kobe Hyogo Japan
5. Department of Clinical Epidemiology; Hyogo College of Medicine; Kobe Hyogo Japan
6. Department of Cardiology; Hyogo Prefectural Amagasaki General Medical Center; Amagasaki Hyogo Japan
7. National Hospital Organization Kyoto Medical Center; Kyoto Japan
8. Mitsubishi Kyoto Hospital; Kyoto Japan
9. Shimabara Hospital; Kyoto Japan
10. Japanese Red Cross Otsu Hospital; Otsu Shiga Japan
11. Hikone Municipal Hospital; Hikone Shiga Japan
12. Osaka Red Cross Hospital; Osaka Japan
13. Kishiwada City Hospital; Osaka Japan
14. Kansai Electric Power Hospital; Osaka Japan
15. Shizuoka General Hospital; Shizuoka Japan
16. Kurashiki Central Hospital; Okayama Japan
17. Kokura Memorial Hospital; Fukuoka Japan
18. Second Okamoto General Hospital; Kyoto Japan
19. Japanese Res Cross Wakayama Medical Center; Wakayama Japan
20. Nishi-Kobe Medical Center; Kobe Hyogo Japan