1. Department of Cardiology, Kokura Memorial Hospital
2. Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
3. Department of Clinical Epidemiology, Hyogo College of Medicine
4. Department of Cardiology, Hyogo Prefectural Amagasaki General Medical Center
5. Department of Cardiovascular Medicine, Shiga University of Medical Science Hospital
6. Department of Cardiology, Japanese Red Cross Wakayama Medical Center
7. Department of Cardiology, Kansai Electric Power Hospital
8. Department of Cardiology, Shizuoka City Shizuoka Hospital
9. Department of Cardiology, Mitsubishi Kyoto Hospital
10. Department of Cardiology, Juntendo University Shizuoka Hospital
11. Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital
12. Department of Cardiology, Kurashiki Central Hospital
13. Department of Cardiology, Hirakata Kohsai Hospital