1. Department of Cardiology, Sendai Kousei Hospital
2. Department of Cardiology, Toyohashi Heart Center
3. Department of Cardiology, Nagoya Heart Center
4. Department of Cardiology, Gifu Heart Center
5. Department of Cardiology, Toyama University Hospital
6. Department of Cardiology, Kurashiki Central Hospital
7. Division of Cardiology, Mitsui Memorial Hospital
8. Department of Cardiology, Sapporo Heart Center, Sapporo Cardio Vascular Clinic
9. Department of Cardiology, New Tokyo Hospital
10. Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University
11. Department of Cardiology, Tokai University School of Medicine
12. Department of Cardiology, Sapporo East Tokushukai Hospital
13. Department of Cardiology, Saiseikai Kumamoto Hospital
14. Division of Cardiology, Department of Medicine, Kindai University Faculty of Medicine
15. Department of Cardiology, Teikyo University School of Medicine
16. Department of Cardiology, St. Marianna University School of Medicine
17. Department of Cardiology, Sakakibara Heart Institute
18. Department of Cardiology, Shonan Kamakura General Hospital
19. Department of Cardiology, Kokura Memorial Hospital
20. Department of Cardiology, Keio University School of Medicine