^○Tomonori Ida, Daisuke Kurihara, Takuma Suto, Keiichi Ashikari, Naoya Kawano, Shihoko Seki, Shinshuke Tsuruta, Hiroaki Takahashi, Hideyuki Chiba, Taiki Morohashi, Toru Goto (Dept. of Gastroenterology, Omori Red Cross Hospital, Tokyo, Japan)

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

^○Kunitaka Nagasawa, Akiko Wakutsu, Kota Otachi, Takahiro Mizuno, Masamichi Todokoro, Haruhiko Kondo, Yuya Yamashiro, Masayuki Shibata, Masaya Katagiri, Tsuguru Shirai, Yuji MIshina, Masako Fukami, Sayaka Hirai, Yu Omata, Masahiro Akashi, Azuma Watanabe, Takahiro Sasamoto, Akihiko Tsuchiya, Ko Nishikawa, Masami Yamanaka (Departoment of Gastroenterology,Ageo Central Hospital,Saitama,Japan)

^○Kazuhiko Shioji, Tomoya Aoyagi, Sou Kurita, Syunya Sasaki, Kazuhiro Funakoshi, Toshiyuki Kato, Rintarou Narisawa (Niigata Cancer Center Hospital, Niigata, Japan)

^○Shiro Hayashi, Aisa Sakamoto, Uriko Otake, wataru Takagi, Hirotsugu Saiki, Hisashi Kondo, Makiko Urabe, Kei Takahashi, Tokuhiro Matsubara, Masashi Yamamoto, Sachiko Nakajima, Tsutomu Nishida, Koji Fukui, Masami Inada (Div. of Gastroenterology, Toyonaka Municipal Hospital, Japan)