1. Kansai Rosai Hospital Cardiovascular Center
2. Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine
3. Division of Cardiology, Osaka Rosai Hospital
4. Division of Cardiovascular Medicine, Kurume University School of Medicine
5. Department of Diabetes Care Medicine, Osaka University Graduate School of Medicine
6. Division of Cardiology, Fukuoka Memorial Hospital
7. Department of Cardiovascular Medicine, Nishinomiya Municipal Central Hospital