1. Mitsui Memorial Hospital
2. Saiseikai Kumamoto Hospital Cardiovascular Center
3. Fujita Health University Hospital
4. Yokohama City University Medical Center
5. Kitasato University
6. National Cerebral and Cardiovascular Center
7. Juntendo University Shizuoka Hospital
8. National Hospital Organization Kumamoto Medical Center
9. Hiroshima City Hospital
10. Osaka General Medical Center
11. Nippon Medical School
12. Nara Medical University
13. The Sakakibara Heart Institute of Okayama
14. Ogaki Municipal Hospital
15. Dokkyo Medical University
16. Sakurabashi Watanabe Hospital
17. Osaka National Hospital
18. Okinawa Prefectural Chubu Hospital
19. Miyazaki Medical Association Hospital
20. Hyogo College of Medicine