^○Makoto Kobayashi¹, Arata Kobayashi¹, Jun Ninomiya¹, Tadashi Maegawa¹, Makoto Yamawaki¹, Kouzou Kuwabara¹, Tetsuya Mizutani¹, Yasushi Sugiura², Motoyoshi Yano¹ (1.Gastroenterology Yokkaichi Municipal Hospital, Japan, 2.Sugiura Clinic)

^○Kaoru Takagi, Tsuyoshi Hamada, Hirofumi Kogure, Hiroyuki Isayama, Kazuhiro Ishigaki, Tsuyoshi Takeda, Ryunosuke Hakuta, Dai Akiyama, Rie Uchino, Naminatsu Takahara, Koji Miyabayashi, Dai Mouri, Saburo Matsubara, Yousuke Nakai, Natsuyo Yamamoto, Minoru Tada, Kazuhiko Koike (Dept. of Gastroenterlogy, Graduate School of Medicine, Tokyo Univ., Tokyo, Japan)

^○Jun Ushio, Masato Tsunoda, Kensuke Yokoyama, Norikatsu Numao, Yoshimasa Miura, Hisashi Hatanaka, Kiichi Tamada, Hironori Yamamoto (Div. of Gastroenterology and Hepatology, Dept. of Internal Medicine, Jichi Univ., Tochigi, Japan)

^○Yoshinobu Okabe¹, tetsuya Nakajima², Yusuke Ishida¹, Kei Kuraoka¹, Yu Sasaki¹, Tomoyuki Ushijima¹, Makiko Yasumoto¹, Masaru Fukahori¹, Youhei Nakama³, Ryouhei Kaji¹, Osamu Tsuruta¹, Takuji Torimura¹ (1.Div. of Gastroenterology, Dept. of Medicine, Sch. of Med. Kurume Univ., Kurume, Japan, 2.Div. of gastroenterology, Dept. of Internal Medicine, Saiseikai Hita Hospital, Hita, Japan, 3.Dept. of Surgery, Sch. of Med. Kurume Univ., Kurume, Japan)

^○Tetsuo Ikeda¹, Kazuki Takeishi², Norifumi Harimoto², Shinzi Ito², Yamashita Youichi², Tomohiko Akahoshi¹, Ikegami Toru², Tomoharu Yoshizumi², Okano Shinzi¹, Kawanaka Hirofumi², Shirabe Ken², Makoto Hashizume², Yoshihiko Maehara² (1.Dept. of Advanced Medical Engineering Profession, Kyushu University Hospital, Fukuoka, Japan, 2.Department of Surgery and Science, Kyushu University, Fukuoka, Japan.)