^○Yasushi Matsumoto, Fuminori Kasashima, Kengo Kawakami, Masamitsu Endo (Department of Cardiovascular Surgery, Kanazawa Medical Center, Kanazawa, Japan)

^○Yosuke Ishii, Motoko Morishima, Shun-ichiro Sakamoto, Yasuo Miyagi, Takashi Sasaki, Jiro Kurita, Kenji Suzuki, Atsushi Hiromoto, Ken-ichiro Takahashi, Hitomi Ueda, Sho-ichiro Izuka, Tetsuro Morota, Takashi Nitta (Nippon Medical School)

^○Keisuke Hakamada, Genichi Sakaguchi, Yuuki Kuroda, Jun Iida, Hiroo Teranishi, Shinichi Tsumaru, Hideki Tsubota, Yoshio Arai, Akira Marui (Kokura Memorial Hospital, Fukuoka, Japan)

^○Michihito Nonaka, Atsushi Yano, Kouji Miura, Masaya Hirayama, Atsushi Sugaya, Taku Shirakami, Taiyou Jinno, Yoshimasa Furuichi, Jyunya Kitaura, Takehiko Matsuo, Takeshi Shimamoto, Tatsuhiko Komiya (Kurashiki Central Hospital)

^○Michiko Ishida, Ryosuke Hayashi, Tsutomu Yanagisawa, Mika Noda, Yusuke Sakurai, Kiyotoshi Akita, Toshimitsu Sato, Hiroshi Ishikawa, Tadahito Eda, Masayoshi Kobayashi, Yoshiyuki Takami, Yasushi Takagi (Fujita health university)