1. Section of Arrhythmia, Division of Cardiovascular Medicine, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
2. Division of Radiology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
3. Kobe Circulation Clinic Kobe Japan
4. Division of Diagnostic Imaging, Department of Diagnostic Radiology Kobe University Hospital Kobe Japan