1. Department of Cardiovascular Medicine, Nara Medical University
2. Department of Cardiology, Faculty of Medicine, University of Tsukuba
3. Department of Cardiology, Nagoya University Graduate School of Medicine
4. Division of Cardiology, Nihon University Itabashi Hospital
5. Department of Clinical Epidemiology, Hyogo College of Medicine
6. Department of Diabetes and Endocrinology, Nara Medical University
7. Department of Cardiology, New Tokyo Hospital
8. Division of Cardiology, Kawasaki Medical School Hospital
9. Department of Cardiovascular Medicine, Shinshu University Graduate School of Medicine
10. Department of Cardiology, Nara Prefecture Seiwa Medical Center
11. Yamato Kashihara Hospital
12. Department of Cardiovascular Medicine, Nara City Hospital
13. Department of Cardiology, Saiseikai Suita Hospital
14. Tokyo Rinkai Hospital
15. Department of Cardiology, Tokyo Metropolitan Bokutoh Hospital
16. Department of Cardiology, Japan Community Health Care Organization, Yokohama Chuo Hospital