1. Division of Cardiovascular Medicine, Toho University Ohashi Medical Center
2. Division of Cardiology, Yokohama City University Medical Center
3. Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
4. Department of Cardiovascular and Renal Medicine, Hyogo College of Medicine
5. Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
6. Division of Cardiology, Department of Internal Medicine, Teikyo University School of Medicine
7. Division of Cardiology, Department of Medicine, Showa University School of Medicine
8. Division of Cardiovascular Medicine, Department of Internal Medicine, Shiga University of Medical Science
9. Department of Cardiovascular Medicine, Saga University
10. Department of Cardiovascular Medicine, Wakayama Medical University
11. Department of Cardiology, Keio University School of Medicine
12. Department of Cardiology, Kashiwara Municipal Hospital
13. Cardiovascular Division, Osaka Police Hospital