Chisato Izumi1, Kiyoyuki Eishi2, Kyomi Ashihara3, Takeshi Arita4, Yutaka Otsuji5, Takashi Kunihara6, Tatsuhiko Komiya7, Toshihiko Shibata8, Yoshihiro Seo9, Masao Daimon10, Shuichiro Takanashi11, Hiroyuki Tanaka12, Satoshi Nakatani13, Hiroshi Ninami14, Hiroyuki Nishi15, Kentaro Hayashida16, Hitoshi Yaku17, Junichi Yamaguchi18, Kazuhiro Yamamoto19, Hiroyuki Watanabe20, Yukio Abe21, Makoto Amaki1, Masashi Amano1, Kikuko Obase2, Minoru Tabata22, Takashi Miura2, Makoto Miyake23, Mitsushige Murata24, Nozomi Watanabe25, Takashi Akasaka26, Yutaka Okita27, Takeshi Kimura28, Yoshiki Sawa29, Kiyoshi Yoshida30. 1. Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center. 2. Division of Cardiovascular Surgery, Nagasaki University Graduate School of Biomedical Sciences. 3. Department of Cardiology, Tokyo Women's Medical University Hospital. 4. Division of Cardiovascular Medicine Heart & Neuro-Vascular Center, Fukuoka Wajiro. 5. Department of Cardiology, Hospital of University of Occupational and Environmental Health. 6. Department of Cardiac Surgery, The Jikei University School of Medicine. 7. Department of Cardiovascular Surgery, Kurashiki Central Hospital. 8. Department of Cardiovascular Surgery, Osaka City University Postgraduate of Medicine. 9. Department of Cardiology, Nagoya City University Graduate School of Medical Sciences. 10. Department of Clinical Laboratory/Cardiology, The University of Tokyo Hospital. 11. Department of Cardiovascular Surgery, Kawasaki Saiwai Hospital. 12. Department of Surgery, Kurume University. 13. Division of Health Sciences, Osaka University Graduate School of Medicine. 14. Department of Cardiac Surgery, Tokyo Women's Medical University. 15. Department of Cardiovascular Surgery, Osaka General Medical Center. 16. Department of Cardiology, Keio University School of Medicine. 17. Department of Cardiovascular Surgery, Kyoto Prefectural University of Medicine. 18. Department of Cardiology, Tokyo Women's Medical University. 19. Division of Cardiovascular Medicine, Endocrinology and Metabolism, Faculty of Medicine, Tottori University. 20. Department of Cardiology, Tokyo Bay Urayasu Ichikawa Medical Center. 21. Department of Cardiology, Osaka City General Hospital. 22. Department of Cardiovascular Surgery, Tokyo Bay Urayasu Ichikawa Medical Center. 23. Department of Cardiology, Tenri Hospital. 24. Department of Laboratory Medicine, Tokai University Hachioji Hospital. 25. Department of Cardiology, Miyazaki Medical Association Hospital. 26. Department of Cardiovascular Medicine, Wakayama Medical University. 27. Department of Cardiovascular Surgery, Takatsuki Hospital. 28. Department of Cardiology, Kyoto University Graduate School of Medicine. 29. Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine. 30. Department of Cardiology, Sakakibara Heart Institute of Okayama.