^○Katsuhiko Oda, Satoshi Kawatsu, Kohki Itoh, Masayuki Ohtani, Kimihiko Kobayashi, Yuka Tabayashi, Susumu Nagamine (Department of Cardiovascular Surgery, Iwate Prefectural Central Hospital)

^○Hidenobu Takaki, Kenichi Hashizume, Shinya Inoue, Kouki Ikebata, Hiroaki Kaneyama, Masanori Honda (Saiseikai Utsunomiya Hospital)

^○Yamanaka Shota, Uchimuro Tomoya, Takanashi Shuichiro (Sakakibara Heart Institute)

^○Yasuhiro Sawada, Shin Shoumura, Hitoshi Suzuki, Chiaki Kondo, Hideto Shimpo (Department of Cardiovascular Surgery, Mie General Medical Center)

^○Kyokun Uehara, Hitoshi Matsuda, Jiro Matsuo, Yosuke Inoue, Atsushi Omura, Yoshimasa Seike, Hiroaki Sasaki, Junjiro Kobayashi (National Cerebral and Cardiovascular Center, Osaka, Japan)

^○Ryo Suzuki, Akihito Mikamo, Yuutaro Matsuno, Akira Fujita, Hiroshi Kurazumi, Bungo Shirasawa, Kimikazu Hamano (The Department of Surgery and Clinical Science, Division of Cardiac Surgery, Yamaguchi University Graduate School of Medicine)

^○Atsushi Omura, Hitoshi Matsuda, Jiro Matsuo, Taishi Inoue, Daichi Shikata, Yosuke Inoue, Yoshimasa Seike, Kyokun Uehara, Hiroaki Sasaki, Yoshirou Hori, Tetsuya Fukuda, Junjiro Kobayashi (National Cerebaral and Cardiovascular Center)