1. Division of Cardiology, Teikyo University Hospital, Tokyo, Japan
2. Department of Cardiology, IMS Tokyo Katsushika General Hospital, Tokyo, Japan
3. Department of Cardiology, Saiseikai Utsunomiya Hospital, Utsunomiya, Tochigi, Japan
4. Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Fukuoka, Japan
5. Department of Cardiovascular Center, Sendai Kousei Hospital, Sendai, Miyagi, Japan
6. Department of Cardiology, Saiseikai Yokohama City Eastern Hospital, Yokohama, Kanagawa, Japan
7. Interventional Cardiology Unit, New Tokyo Hospital, Matsudo, Chiba, Japan
8. Department of Cardiology, Shonan Kamakura General Hospital, Kamakura, Kanagawa, Japan
9. Second Department of Internal Medicine, Toyama University Hospital, Toyama, Toyama, Japan
10. Department of Cardiology, Tokyo Bay Urayasu Ichikawa Medical Center, Urayasu, Chiba, Japan
11. Department of Cardiovascular Surgery, Juntendo University School of Medicine, Tokyo, Japan
12. Department of Cardiology, Kinki University, Osakasayama, Osaka, Japan
13. Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
14. Department of Cardiology, Toyohashi Heart Center, Toyohashi, Aichi, Japan
15. Department of Cardiology, Nagoya Heart Center, Nagoya, Aichi, Japan
16. Department of Cardiology, Gifu Heart Center, Gifu, Gifu, Japan
17. Department of Cardiology, Keio University School of Medicine, Tokyo, Japan