1. Department of Diabetes, Endocrinology, and Metabolism Fukushima Medical University School of Medicine Fukushima Japan
2. Department of Cardiovascular Medicine Saga University Saga Japan
3. Department of Medical Statistics Osaka Metropolitan University Graduate School of Medicine Osaka Japan
4. Hiramitsu Heart Clinic Nagoya Japan
5. Department of Cardiology and Clinical Examination Oita University Faculty of Medicine Yufu Japan
6. Cardiovascular Medicine Fukuoka Saiseikai Futsukaichi Hospital Chikushino Japan
7. Department of Cardiovascular Internal Medicine Tosei General Hospital Seto Japan
8. Department of Cardiology Yokohama Minami Kyosai Hospital Yokohama Japan