^○Ken Takasaki (Medical Corp. JOJINKAI Ushiku Aiwa General Hospital)

^○Sang-Jae Park, Eung Chang Lee, Sung-Sik Han, Seung Duk Lee (Center for Liver Cancer, National Cancer Center, Korea)

^○Keisuke Okamura, Takehiro Noji, Yoshitsugu Nakanishi, Tooru Nakamura, Toshimichi Asano, Daisuke Miyasaka, Takehiro Maki, Takahiro Tsuchikawa, Toshiaki Shichinohe, Satoshi Hirano (Department of Gastroenterological Surgery II, Hokkaido University, Sapporo, Japan)

^○Teiichi Sugiura, Yukiyasu Okamura, Takaaki Ito, Yusuke Yamamoto, Ryo Ashida, Katsuhisa Ohgi, Nobuyuki Watanabe, Mihoko Yamada, Takuya Minagawa, Shusei Sano, Shunsuke Tamura, Takashi Miyamoto, Katsuhiko Uesaka (Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, Shizuoka, Japan)

^○Yoshihiro Sakamoto¹, Yusuke Kazami¹, Taku Aoiki², Junichi Arita¹, Nobuhisa Akamatsu¹, Junichi Kaneko¹, Norihiro Kokudo³, Kiyoshi Hasegawa¹ (1.Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, The Tokyo University Hospital, 2.2nd Department of Surgery, Dokkyo University Hospital, 3.National Center for Global Health and Medicine)

^○Tomoki Ebata, Takashi Mizuno, Yukihiro Yokoyama, Tsuyoshi Igami, Junpei Yamagughi, Shunsuke Onoe, Toshio Kokuryo, Keisuke Uehara, Masato Nagino (Division of Surgical Oncology, Nagoya University, Japan)