^○Akimasa Morisaki, Takashi Murakami, Hiromichi Fujii, Yosuke Takahashi, Yoshito Sakon, Kokoro Yamane, Noriaki Kishimoto, Toshihiko Shibata (Department of Cardioavscular Surgery, Osaka City University Graduate School of Medicien, Osaka, Japan)

^○HIroshi Okamoto, Yasuyuki Fujimoto, Chikao Teramoto, Akinori Tamenisi (Yokkaichi Municipal Hospital, Yokkaichi, Japan)

^○Tatsuya Seki, Yasushige Shingu, Nobuyasu Katoh, Tomonori Ooka, Suguru Kubota, Yoshiro Matsui (Hokkaido university, Sapporo, Japan)

^○Atsunobu Oryoji, Kazuyoshi Takagi, Tomofumi Fukuda, Yasuyuki Zaima, Hiroyuki Saisho, Takahiro Shojima, Tohru Takaseya, Kouichi Arinaga, Hiroyuki Tanaka (Kurume University)

^○Kaoru Matsuura, Hideki Ueda, Hiroki Kohno, Yoshinori Enomoto, Michiko Watanabe, Daisuke Hiraoka, Tomohiko Inui, Yasunori Yakita, Yutaka Wakabayashi, Tomoyoshi Kanda, Masahiko Fujii, Shuntaro Ito, Goro Matsumiya (Chiba University Hospital, Cardiovascular Surgery)

^○Yosuke Sakurai, Masaaki Koide, Yoshifumi Kunii, Minori Tateishi, Satoshi Okugi, Uchin Sou (Seirei Hamamatsu General Hospital)

^○Shohei Yoshida¹, Koichi Toda¹, Shigeru Miyagawa¹, Yasushi Yoshikawa¹, Hiroki Hata¹, Daisuke Yoshioka¹, Satoshi Kainuma¹, Takuji Kawamura¹, Ai Kawamura¹, Satoshi Nakatani², Takayoshi Ueno¹, Toru Kuratani¹, Yoshiki Sawa¹ (1.Department of Cardiovascular Surgery, Osaka University, 2.Department of Cardiovascular Medicine, Osaka University)