^○Yuji Miyamoto, Yorimasa Yamamoto, Chika Taniguchi, Yusuke Muramatsu, Tomoki Shimizu, Hideomi Tomida, Yusuke Horiuchi, Dai Inoue, Masami Omae, Toshiaki Hirasawa, Toshiyuki Yoshio, Akiyoshi Ishiyama, Tomohiro Tsuchida, Junko Fujisaki, Masahiro Igarashi (Dept. of Gastroenterology, Cancer Institute Hospital, Tokyo, Japan)

^○Atsushi Shirakawa, Kana Amamiya, Naonori Inoue, Yukino Kawakatsu, Yasutoshi Fujii, Naokuni Sakiyama, Yuki Ueda, Yusuke Okada, Kojiro Nakase, Koichiro Mandai, Azumi Suzuki, Takuji Kawamura, Hideaki Kawabata, Atsuhiro Morita, Masatoshi Miyata, Kiyohito Tanaka, Koji Uno, Kenjiro Yasuda (Dept. of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan)

^○Kaori Sugiura, Yuichi Shimodate, Yosuke Mitani, Kyoko Hamaguchi, Akira Doi, Naoyuki Nishimura, Hirokazu Mori, Kazuhiro Matsueda, Hiroshi Yamamoto (Dept. of Medical Gastroenterology, Kurashiki Central Hospital, Okayama, Japan)

^○Tomoyuki Hayashi, Akihiro Seki, Hidetoshi Nakagawa, Rika Horii, Noriho Iida, Masaaki Kitahara, Naoki Oishi, Hajime Sunagozaka, Tetsuro Shimakami, Kuniaki Arai, Kazunori Kawaguchi, Kazuya Kitamura, Taro Yamashita, Takashi Kagaya, Yoshio Sakai, Tatsuya Yamashita, Eishiro Mizukoshi, Masao Honda, Shuichi Kaneko (Dept. of Gastroenterology, Kanazawa Univ., Ishikawa, Japan)

^○Junichi Kobayashi, Takuma Okamura, Tomoaki Suga (Dept. of Gastroenterology, Sch. of Med. Shinshu Univ, Matsumoto, Japan.)