^○Yu Kawashima, Koichiro Abe, Takayuki Okamura, Ken Shimada, Hitoshi Aoyagi, Satoshi Kimura, Meguru Adachi, Kotaro Miura, Akari Isono, Tadahisa Ebato, Ryo Miura, Toshihiko Arizumi, Takatsugu Yamamoto, Mitsuhiko Aiso, Yoriyuki Takamori, Hiroto Kita, Atsushi Tanaka, Yasushi Kuyama, Hajime Takikawa (Dept. of Medicine, Sch. of Med. Teikyo Univ., Tokyo, Japan)

^○Yushi Imai, Ryosaku Azemoto, Tokuhide Sugawara, Miyuki Sensui, Koji Takahashi, Masahumi Nishio, Chiaki Inagaki, Masashi Yabiki, Hiroshi Naito, Kiyofumi Ishii, tatsuya Fujimoto, Masamichi Obu, Mototsugu Fujimori, Yu Yoshida, Yoshihiro Koma (Kimitu Tyuo Hospital,Chiba,Japan)

^○Koichi Gondo, takanori hosokawa, Namiki Izumi, Masayuki Kurosaki, Yuka Takahashi, Jun Itakura, Kaoru Tsuchiya, Hiroyuki Nakanishi, ken ueda, Shoko Suzuki, Yutaka Yasui, Nobuharu Tamaki, nobuhiro hattori, Yu Asano, Shuya Matsuda, Natsuko Nakakuki, Hitomi Takada (Musasino Red Cross Hospital,Gastorointestional Medicine)

^○Minoru Fujita, Akiko Shiotani, Ken Haruma (Div. of Gastroenterology, Dept. of Medicine, Kawasaki Medical School, Kurashiki, Japan)

^○Yuriko Hanada, Teppei Akimoto, Hiroshi Yamawaki, Hiroyuki Kodaka, Hiroyuki Nagoya, Nobue Ueki, Masanori Kusunoki, Tetsuro Kawagoe, Seiji Futagami, Kazumasa Miyake, Choitsu Sakamoto (Dept. of Gastroenterological , Sch. of Med. Nippon Medical School , Tokyo, Japan)