^○Kenichi Hayashi, Takatoshi Nakashima, Bensuleiman Yahya, Kazuyo Fujimoto, Kazunari Sasaki, Junya Ando, Masao Hanafusa, Shiei Yoshida, Takuo Kado, Yuichi Harano, Satoshi Myojo, Shunichi Yoshida, Shigeaki Sawai (Akasi Medical Center,Hyogo,Japan)

^○Shinya Uemura¹, Takuji Iwashita¹, Tsuyoshi Mukai² (1.First Dept. of Internal Medicine, Gifu University Hospital, Gifu, Japan, 2.Department of Gastroenterology, Gifu Municipal Hospital, Gifu, Japan)

^○Shinichiro Muro, Toru Ueki, Takuya Satomi, Yosuke Saragai, Shigeru Ota, Sayo Kobayashi, Tomoo Fujisawa, Toru Nawa, Hiromi Hamamoto, Kosaku Sakaguchi (Dept. of Internal Medicine, Fukuyama City Hospital, Hiroshima, Japan)

^○Takashi Kobayashi, Mamoru Takenaka, Yoshifumi Arisaka, Seiji Fujigaki, Koudai Yamanaka, Yuudai Nomura, Yuichi Hirata, Takeshi Ezaki, Takao Iemoto, Hiroshi Ogawa, Yousuke Yagi, Takashi Nakagawa, Arata Sakai, Sadahiko Terashima, Atsuhiro Masuda, Hideyuki Shiomi, Yasuhiro Okabe, Hiromu Kutsumi, Takeshi Azuma (Div. of Gastroenterology, Kobe Univ. Hosp., Kobe, Japan)

^○Shin Nakahira, toshimitu irei, masashi inoue, kazuki odagiri, tomoaki kurokawa, emi yamaguchi, genta sawada, shinya yamashita, masahiro mun, yosuke shimizu, harumi tominaga, nobutaka hatanaka (Dept. of Digestive Surgery, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Japan)