^○Eisuke Nakao¹, Satoshi Asai¹, Kirie Hashimoto¹, Takumi Ichinona¹, Eisuke Akamine¹, Koujirou Tanoue¹, naoki fujimoto¹, Atsuhiro Ogawa² (1.Dept. of Gastroenterology , Tane General Hospital , Osaka , Japan, 2.Dept. of Surgery , Tane General Hospital , Osaka , Japan)

^○Masaomi Imajyou¹, Yasunori Oono¹, Motohiro Kojima², Masaaki Noguchi¹, Hiroshi Nakamura¹, Takuya Honbu¹, Kenji Takashima¹, Tomohiro Kadota¹, Tomoji Kato¹, Hiroyuki Morimoto¹, Shozo Osera¹, Yusuke Yoda¹, Hiroaki Ikematsu¹, Tomonori Yano¹, KAZUHIRO KANEKO¹ (1.Endoscopy Division, National Cancer Center Hospital East, Kashiwa, Japan, 2.Pathology Division, Research Center for Innovative Oncology, National Cancer Center Hospital East, Kashiwa, Japan)

^○Kazuyuki Nakazawa¹, Naoki Shingaki^1,2, Takao Maekita^1,2, Maki Bunno¹, syoutarou Enomoto¹, yoshiyuki mori¹, Uki Oota¹, Masao Ichinose² (1.Nishimurakai Koyo Hospital,Wakayama,Japan, 2.The Second Department of Internal Medicine, Wakayama Medical University, WAKAYAMA, JAPAN)

^○Takayoshi Shimizu, Yasunori Oono, Kensuke Shinmura, Kentaro Yoshimi, Tomoji Kato, Shozo Osera, Hiroyuki Morimoto, Yusuke Yoda, Tomoyuki Odagaki, Hiroaki Ikematsu, Tomonori Yano, KAZUHIRO KANEKO (Dept. of Gastroenterology & Gastrointestinal Oncology National Cancer Center Hospital East Chiba, Japan)

^○Shunsuke Saito, Akiko Fujiwara, Yuki Ishihara, yuki okamoto, soichiro kawahara, Mitsuhiro Kaneto, masakuni fujii, mamoru ito, Shuhei Ishiyama, Junichiro Nasu, Masao Yoshioka, Junji Shiode (Dept. of Internal Medicine, Okayama Saiseikai General Hospital. Okayama, Japan)