^○Hiromune Shimamura¹, Hideaki Kodama¹, Kazunori Takeda^1,2 (1.Department of Surgery, Sendai Medical Center, Sendai, Japan, 2.Health Insurance Claims Review & Reimbursement services, Sendai, Japan)

^○Yuki Masuda¹, Minoru Kitago¹, Masahiro Shinoda¹, Hiroshi Yagi¹, Yuta Abe¹, Kiminori Takano¹, Go Oshima¹, Taizo Hibi³, Osamu Itano², Yuko Kitagawa¹ (1.Department of Surgery, Keio University School of Medicine, Tokyo, Japan, 2.International University of Health and Welfare, Narita, Japan, 3.Transplantation/Pediatric Surgery, Kumamoto University, Kumamoto, Japan)

^○Rihito Nagata, Nobuhisa Akamatsu, Junichi Togashi, Junichi Arita, Junichi Kaneko, Yoshihiro Sakamoto, Kiyoshi Hasegawa (Department of Surgery, Hepato-Biliary-Pancreatic Division, Artificial Organ and Transplantation Division, Tokyo University.)

^○Daisuke Hashimoto^1,2, Rumi Itoyama¹, Yosuke Nakao¹, Naoki Umezaki¹, Kota Arima¹, Kensuke Yamamura¹, Shigeki Nakagawa¹, Akira Chikamoto¹, Fujio Matsumura², Hideo Baba¹ (1.Department of Gastroenterological Surgery, Kumamoto University, 2.Department of Surgery, Omuta Tenryo Hospital, Omuta, Japan)

^○Shinichiro Ono, Akihiko Soyama, Tomohiko Adachi, Masaaki Hidaka, Takanobu Hara, Hajime Matshshima, Kengo Kanetaka, Mitsuhisa Takatsuki, Susumu Eguchi (Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences)

^○Wataru Nakanishi, Shigehito Miyagi, Chikashi Nakanishi, Yasuyuki Hara, Ryuichi Nishimura, Kenji Shimizu, Satomi Uematsu, yuta Kakizaki, Muneyuki Matsumura, Takashi Kamei, Michiaki Unno (Department of Surgery, Tohoku University)