^○Wada Tsuneya, Tamaki Yamada, Yasuo Komori (Okazaki City Medical Association Publish Health Center, Okazaki, Japan)

^○Ryoichi Miyanaga¹, Naoki Hosoe¹, Eisuke Iwasaki¹, Kazuhiro Kashiwagi¹, Makoto Naganuma¹, Takanori Kanai², Haruhiko Ogata¹ (1.Endoscopy Center, Keio University Hospital, Tokyo, Japan, 2.Division of Gastroenterology & Hepatology, Departent of Internal Medicine, Keio University School of Medicine, Tokyo, Japan)

^○Masaru Mizutani¹, Yosuke Iriguchi¹, Jouji Oda¹, Satoshi Takayanagi¹, Yasuhiro Tomino¹, Daisuke Kishi¹, Hidetoshi Omura¹, Koichi Itabashi¹, Tetsuro Yamazato¹, Naoya Fujita¹, Yukio Takenaka¹, Ayako Kamiya¹, Akihiko Yamamura² (1.Dept. of Gastroenterology, Tokyo Metropolitan Cancer Detection Center, Tokyo, Japan, 2.Department of pathology, Tokyo metropolitan cancer detection center, Tokyo, Japan)

^○Syotaro Hanamura, Kunio Ukawa, Misako Tohata, Reika Suzuki, masashi Hayashi, Kunio Asonuma, Yuichi Takano, Eiichi Yamamura, Yuichiro Kuroki, Masatsugu Nagahama, Kazuaki Inoue, Hiroshi Takahashi (Div. of Gastroenterology, Dept. of Internal Medicine, Sch. of Med. Showa University Fujigaoka Hospital, Yokohama, Japan)

^○Shin Kono, Takuji Gotoda, Fuminori Moriyasu (Dept. of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan)