1. Department of Cardiology, Teikyo University
2. Department of Cardiology, Toyohashi Heart Center
3. Department of Cardiology, Sakakibara Heart Institute
4. Department of Cardiology, Saiseikai Yokohamashi Tobu Hospital
5. Department of Cardiology, Tokyo Women’s Medical University
6. Department of Cardiology, Hiroshima City Hiroshima Citizens Hospital
7. Division of Cardiology, Yokohama City University Medical Center
8. Division of Cardiology, Mitsui Memorial Hospital
9. Department of Cardiology, Kitazato University Hospital
10. Department of Cardiology, Iwate Medical University
11. Department of Cardiology, The Sakakibara Heart Institute of Okayama
12. Department of Cardiology, Hospital of the University of Occupational and Environmental Health
13. Department of Cardiology, Shiga University of Medical Science Hospital
14. Department of Cardiology, Tokai University Hospital