1. Department of Cardiology Rinku General Medical Center Izumisano Japan
2. Department of Cardiovascular Medicine Osaka University Graduate School of Medicine Suita Japan
3. Division of Cardiology Osaka General Medical Center Osaka Japan
4. Division of Cardiology Amagasaki Chuo Hospital Amagasaki Japan
5. Department of Medical Informatics Osaka University Graduate School of Medicine Suita Japan
6. Division of Cardiology Kawanishi City Medical Center Kawanishi Japan
7. Division of Cardiology Osaka Rosai Hospital Sakai Japan
8. Cardiovascular Division Osaka Police Hospital Osaka Japan