1. Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
2. Department of Clinical Epidemiology, Hyogo College of Medicine
3. Department of Cardiovascular Medicine, Komura Memorial Hospital
4. Department of Cardiovascular Medicine, Mitsubishi Kyoto Hospital
5. Department of Cardiovascular Medicine, Saga University Hospital
6. Department of Cardiovascular Medicine, Wakayama Medical University Hospital
7. Hanaoka Seishu Memorial Cardiovascular Clinic
8. Department of Cardiology, Kurashiki Central Hospital
9. Division of Cardiology, Teikyo University Hospital
10. Division of Cardiology, Mitsui Memorial Hospital
11. Division of Cardiology, Tenri Hospital
12. Department of Cardiovascular Medicine, Tokyo Hospital
13. Division of Cardiology, Iwate Medical University Hospital