1. Department of Cardiology Yamagata University School of Medicine Yamagata Japan
2. Department of Cardiology Fujita Health University Bantane Hospital Nagoya Japan
3. Department of Heart Rhythm Management University of Occupational and Environmental Health Kitakyushu Japan
4. Department of Cardiology Osaka City General Hospital Osaka Japan
5. Division of Cardiology Japan Community Healthcare Organization Kyushu Hospital Kitakyushu Japan
6. Department of Cardiovascular Medicine Osaka City University Graduate School of Medicine Osaka Japan
7. Division of Cardiology Sakakibara Heart Institute Tokyo Japan
8. Cardiovascular Surgery Nippon Medical School Tokyo Japan
9. Department of Cardiology Faculty of Medicine University of Tsukuba Tsukuba Japan
10. Division of Cardiology Saiseikai Kumamoto Hospital Kumamoto Japan