1. Division of Cardiology, Nihon University Itabashi Hospital
2. Department of Cardiology, Nihon University Hospital
3. Kawaguchi Municipal Medical Center
4. Yokohama Chuo Hospital
5. Sekishindo Hospital
6. Asakadai Central General Hospital
7. Tokyo Rinkai Hospital
8. Kasukabe Municipal Hospital
9. Yasuda Hospital
10. Makita General Hospital
11. Itabashi Medical Association Hospital
12. Ukima Central Hospital
13. Itou Cardiovascular Clinic
14. Kondo Clinic
15. Keiai Clinic
16. Ohno Medical Clinic
17. Onikura Clinic