1. Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
2. Section of Arrhythmia, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
3. Department of Cardiology, Kobe City Medical Center General Hospital
4. Department of Cardiovascular Medicine, Toyohashi Heart Center
5. Division of Cardiology, Department of Medicine, Nihon University of Medicine
6. Heart Rhythm Center, Takatsuki General Hospital
7. Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
8. Kansai Rosai Hospital Cardiovascular Center
9. Department of Cardiology, Hyogo Prefectural Amagasaki General Medical Center
10. Department of Cardiology, Kita-Harima Medical Center
11. Department of Cardiology, Akashi Medical Center
12. Department of Cardiovascular and Renal Medicine, Hyogo College of Medicine
13. Department of Cardiology, Himeji Cardiovascular Center
14. Department of Cardiology, Kobe Rosai Hospital
15. Department of Cardiology, Kakogawa Central City Hospital
16. Cardiovascular Division, Osaka Saiseikai Nakatsu Hospital