^○Kyoko Hamaguchi, Kazuhiro Matsueda, Yuichi Shimodate, Akira Doi, Naoyuki Nishimura, Hirokazu Mori, Hiroshi Yamamoto (Dept. of Gasteroenterology, Kurashiki Central Hospital, Kurashiki, Japan)

^○Kohei Matsumoto¹, hiroya ueyama¹, kenshi matsumoto¹, Ippei Tanaka¹, Ryosuke Nomura¹, Yuta Nakagawa¹, Tsutomu Takeda¹, Yuji Shimada¹, Daisuke Asaoka¹, Mariko Hojo¹, akihito nagahara¹, Natsumi Tomita², Yoshiaki Kajiyama², Takashi Yao³, sumio watanabe¹ (1.Dept. of Gastroenterology, Juntendo University Hospital, Tokyo, Japan, 2.Department of esophagogastric surgery, Juntendo university hospital, Tokyo, Japan, 3.Department of Pathology, Juntendo university hospital, Tokyo, Japan)

^○Kentaro Suzuki, Osamu Dohi, Atsushi Majima, Yuriko Onozawa, Tomoko Kitaichi, Yusuke Horii, Tetsuya Okayama, Naohisa Yoshida, Kazuhiro Kamada, Kazuhiro Katada, Kazuhiko Uchiyama, Tsuyoshi Ishikawa, Osamu Handa, Tomohisa Takagi, Hideyuki Konishi, Yuji Naito, Yoshito Ito (Molecular Gastroenterology and Hepatology Kyoto Prefectural Univ., Kyoto, Japan)

^○Satoshi Kinoshita¹, Toshihiro Nishizawa^1,2, Teppei Akimoto¹, Seiji Sagara¹, Osamu Goto¹, Tadateru Maehata¹, Ai Fujimoto¹, Yasutoshi Ochiai¹, Rieko Nakamura¹, Toshio Uraoka¹, Naohisa Yahagi¹ (1.Div. of Research and Development For Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine,Tokyo, Japan, 2.Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine,Tokyo, Japan)