^○Shinichiro Arakawa, Seishiro Sekino, Masaki Kimura, Shigeru Kiyama, Katsutoshi Murase (General and Cardiothoracic Surgery, Graduate School of Medicine, Gifu University)

^○Ryusuke Amemiya¹, Shigeo Hayatsu¹, Yuta Abe², Osamu Itano³, Go Wakabayashi⁴ (1.Department of Surgery, National Hospital Organization Saitama National Hospital, 2.Department of Surgery, School of Medicine, Keio University, 3.Department of Surgery, School of Medicine, International University of Health and Welfare, 4.Department of Surgery, Ageo Central General Hospital)

^○Kiyotaka Hosoda, Akira Shimizu, Akira Kobayashi, Takahide Yokoyama, Hiroaki Motoyama, Tsuyoshi Notake, Kenta Yokoi, Kentarou Fukushima, Hitoshi Masuo, Hiroki Sakai, Shin-ichi Miyagawa (Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan)

^○Kyung Chul Yoon (Department of Surgery, Seoul National University College of Medicine)

^○Hiroki Sakai, Akira Shimizu, Akira Kobayashi, Takahide Yokoyama, Hiroaki Motoyama, Tsuyoshi Notake, Kenta Yokoi, Kentaro Fukushima, Hitoshi Masuo, Kiyotaka Hosoda, Shinichi Miyagawa (Department of Surgery, Shinshu University School of Medicine)

^○Akifumi Yoshida, Shingo Yamashita, Satoshi Nemoto, Takaaki Kato, Akiko Omori, Yoshito Kodera, Shunichi Ariizumi, Hiroto Egawa, Masakazu Yamamoto (Department of Surgery, Tokyo Woman's Medical University, Tokyo, Japan)