^○Saito Ryota¹, Matsumoto Michinori¹, Kojya Manabu¹, Tsukazaki Yuuhei¹, Chono Nobuhiko¹, Kitagawa Kazuo¹, Kurosawa Koji¹, Watanabe Michiaki¹, Yanaga Katsuhiko² (1.Department of Surgery, Atsugi City Hospital, 2.Department of Surgery, The Jikei University School of Medicine)

^○Kwangyeol Paik (Department of HBP Surgery, Catholic University)

^○Zoljargal Jadambaa, Yerbolat. A, Unenbat. G, Enkh-Amgalan. TS, Chinburen. J, Taivanbaatar Erdenebileg (Clinic of Surgical Department National Cancer Center of Mongolia)

^○Aiste Kielaite-Gulla^1,2, Strupas Kestutis¹ (1.Department of Surgery, Georgetown University Hospital / Vilnius University Hospital, Santaros Clinics, 2.Department of Surgery, Georgetown University Hospital, Washington DC, USA)

^○Yoshitaro Shindo^1,2, Mazhar Kanak A.², Rebecca L. Heise³, Masao Nakajima¹, Takuya Fujimoto¹, Satoshi Matsukuma¹, Hiroto Matsui¹, Yukio Tokumitsu¹, Yoshihiro Tokuhisa¹, Marlon Levy F.², Hiroaki Nagano¹ (1.Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, 2.Department of Surgery, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA, 3.Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, USA)

^○Tomoki Shirota, Yuichi Nagakawa, Yatsuka Sahara, Chie Takishita, Yohsuke Hijikata, Nao Kobayashi, Hiroaki Osakabe, Tetsushi Nakajima, Yuichi Hosokawa, Akihiko Tsuchida (Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan)