1. Second Department of Internal Medicine, Toyama University Hospital
2. Nippon Medical School, Tama-Nagayama Hospital
3. Department of Cardiology, Hirosaki University Graduate School of Medicine
4. The Cardiovascular Institute
5. Division of Biostatistics and Clinical Epidemiology, University of Toyama
6. Department of Cardiology, Hokko Memorial Hospital
7. Health Administration Center, Asahikawa Medical University
8. Internal Medicine 1, Yamagata University School of Medicine
9. Cardiology Department, International Medical Center, Saitama Medical University
10. Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
11. International University of Health and Welfare, Mita Hospital
12. Division of Cardiology, Niigata University Graduate School of Medicine and Dental Science
13. Graduate School of Health Science, Niigata University School of Medicine
14. Nagoya University
15. Department of Cardiology, Fujita Health University School of Medicine
16. Institute for Clinical Research, National Hospital Organization, Osaka National Hospital
17. Department of Cardiology, Osaka General Medical Center
18. Faculty of Health Sciences, Yamaguchi Graduate School of Medicine
19. Department of Cardiovascular Medicine, Tottori University Hospital
20. Kagawa Prefectural Shirotori Hospital
21. Department of Cardiology, Chikamori Hospital
22. Department of Clinical Examination and Diagnostics, Oita University
23. Department of Health Sciences, Faculty of Medical Sciences, Kyushu University