^○Tomoyuki Ishigaki, Shinei Kudo, Takemasa Hayashi, Tatsuya Sakurai, Yuta Kouyama, Katsuro Ichimasa, Yusuke Yagawa, Hiroki Nakamura, Naoya Toyoshima, Yuichi Mori, Masashi Misawa, Toyoki Kudo, Tomokazu Hisayuki, Kunihiko Wakamura, Atsushi Katagiri, Hideyuki Miyachi, Eiji Hidaka, Fumio Ishida (Digestive Disease Center, Showa University Northern Yokohama Hospital , Japan)

^○Daisuke Ide^1,2, Shoichi Saito², Shunsuke Kamba², Hiroko Inomata², Naoto Tamai², Tomohiro Kato², Masahiro Ikegami³ (1.Dept. of Internal Medicine, Div. of Gastroenterology and Hepatology, The Jikei University School of Medicine, Japan, 2.Department of Endoscopy, The Jikei University School of Medicine, 3.Department of Pathology, The Jikei University School of Medicine)

^○Kenjiro Suzuki, Dai Hirasawa, Tetsuya Ohira, Yoshihiro Harada, Yuki Maeda, Yoshiki Koike, Taku Yamagata, Megumi Tanaka, Yutaka Noda (Dept. of Gastroenterology, Sendai City Medical Center, Sendai, Japan)

^○Kiyoshi Ogiso¹, Naohisa Yoshida¹, Ryohei Hirose¹, Yutaka Inada¹, Yuji Naito¹, Masayoshi Nakanishi², Eigo Ootsuji², Mitsuo Kishimoto³, Akio Yanagisawa³, Yoshito Ito¹ (1.Dept. of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan, 2.Department of Surgery, Division of Digestive Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan, 3.Department of Surgical Pathology, Kyoto Prefectural University of Medicine, Kyoto, Japan)

^○Hiroshi Kanie, Satoshi Nomura, Issei Kojima, Yu Nojiri, Takashi Yoshimine, Yasuaki Fujita, Atsunori Kusakabe, TESSHIN BAN, Tomonori Yamada, KATSUMI HAYASHI, ETSURO ORITO (Dept. of Gastroenterology,Nagoya Daini Red Cross Hospital,Nagoya,Japan)