1. Department of Medicine, Division of Cardiovascular Medicine, Jichi Medical University
2. Cardiology and Vascular Medicine, Hoshi General Hospital
3. Ube-Kohsan Central Hospital
4. Cardiovascular Surgery, Nippon Medical School
5. Cardiology, Tachikawa Hospital
6. Cardiology, Kindai University School of Medicine
7. Department of Heart Rhythm Management, University of Occupational and Environmental Health
8. Cardiology, Juntendo University Urayasu Hospital
9. Pediatric Cardiology, Saitama Medical University International Medical Center
10. Cardiology, Kurashiki Central Hospital
11. Division of Cardiology, Yokohama City University Medical Center
12. Division of Cardiology, Saiseikai Kumamoto Hospital