^○makiko Mori¹, Koichi Koizumi¹, Go Kuwata¹, Taku Tabata², Kimiaki Hattori¹, Susumu Iwasaki¹, Kazuro Chiba¹, Sawako Kuruma¹, Takashi Fujiwara¹, Junko Fujiwara², Takeo Arakawa², Kumiko Monma², shinichiro Horiguchi³, Terumi Kamisawa¹ (1.Tokyo Metropolitan Cancer and Infectious Deseases Center Komagome Hospital, Japan, 2.Tokyo Metropolitan Cancer and Infectious Deseases Center Komagome Hospital, 3.Tokyo Metropolitan Cancer and Infectious Deseases Center Komagome Hospital)

^○Kenichiro Imai, Kinichi Hotta, Yuichiro Yamaguchi, Noboru Kawata, Naomi Kakushima, Kohei Takizawa, Masaki Tanaka, Hiroyuki Matsubayashi, Hiroyuki Ono (Endoscopy Division, Shizuoka Cancer Center, Shizuoka, Japan)

^○Takahiko Ito¹, Naoto Shimeno¹, Kazuhiro Matsumoto¹, Kazuya Hosotani¹, Tatsunori Minamide¹, Hiroki Kitamoto¹, Yohei Taniguchi¹, Masashi Fukushima¹, Masaya Wada¹, Shuko Morita¹, satoko inoue¹, Hiroshi Tei¹, Yoshiki Suginoshita¹, Tetsuro Inokuma¹, Yukihiro Imai², Keiichiro Uehara² (1.Kobe City Medical Center General Hospital,Dept. of Gastroenterology, Japan, 2.Kobe City Medical Center General Hospital,Dept. of Clinical Pathology)

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

^○Ryosuke Kobayashi¹, Kingo Hirasawa¹, Hiroaki Kaneko¹, Makomo Makazu¹, Chiko Sato¹, Atsushi Kokawa¹, Shin Maeda² (1.Div. of Endoscopy, Yokohama City University Medical Center, Yokohama, Japan, 2.Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan)