^○Hideaki Mori, Tetsuya Ota, Takafumi Kubo, Ken Seshimo, Takuzo Fujiwara (Department of Surgery, National Hospital Organization Okayama Medical Center, Okayama, Japan)

^○Teruhide Ishigame, Takashi Kimura, Kiyoko Suzushino, Makoto Muto, Junichiro Watanabe, Naoya Sato, Yasuhide Kofunato, Ryo Okada, Akira Kenjo, Tatsuo Shimura, Shigeru Marubashi (Department of Hepato-Biliary-Pancreatic and Transplant Surgery, Fukushima Medical University, Fukushima, Japan)

^○Sherif Mohammed Elgarf, Marc-Antoine Allard, Nassiba Beghdadi, Ahmed Swelam, Antonio Sa Cunha, Daniel Cherqui, René Adam (Department of Surgery, Tanta University)

^○Akihiko Oshita, Yasuhiro Matsugu, Hideki Nakahara, Toshiyuki Itamoto (Department of Gastroenterological Surgery, Hiroshima Prefectural Hospital, Hiroshima, Japan)

^○Yasuyuki Nakata¹, Saiho Ko², Masanori Matsusaka¹, Kunihiko Seki¹, Shirou Ueda¹, Takeshi Matsuyama¹ (1.Department of Emergency Medicine, Nara Prefecture General Medical Center, Nara, Japan, 2.Department of Surgery, Nara Prefecture General Medical Center, Nara, japan)