^○Osamu Togawa¹, Takeo Watanabe¹, Hiroyuki Isayama², Hiroo Oyama¹, Yukiko Osawa¹, Tomoka Nakamura¹, Tatsunori Suzuki¹, Mizuki Nishibatake¹, Tatsuya Mitsui¹, Eriko Goto¹, Yoshihiro Isomura¹, Motoko Seto¹, Yukihiro Koike¹ (1.Dept. of Gastroenterology, Kanto Central Hospital, Japan, 2.Dept. of Gastroenterology, The University of Tokyo)

^○Yusuke Ishida¹, Yoshinobu Okabe¹, Masaru Fukahori¹, Kei Kuraoka¹, Makiko Yasumoto¹, Yu Sasaki¹, Tomoyuki Ushijima¹, Youhei Nakama², Yoshiki Naito³, Hiruyuki Horiuchi², Osamu Tsuruta¹, Takuji Torimura¹ (1.Div. of Gastroenterology, Dept. of Medicine, Kurume University School of Medicine, Kurume, Japan, 2.Dept. of Surgery, Kurume University School of Medicine, Kurume, Japan, 3.Dept. of Pathology, Kurume University School of Medicine, Kurume, Japan)

^○Rikiya Hasegawa, Kosuke Okuwaki, Mitsuhiro Kida, Toru Kaneko, Hiroshi Yamauchi, Shiro Miyazawa, Tomohisa Iwai, Miyoko Takezawa, Hiroshi Imaizumi, Wasaburo Koizumi (Kitasato University Hospital,Kanagawa,Japan)

^○Akira Aso¹, Kazuhiko Nakamura¹, Takashi Osoegawa¹, Gyoho Haku¹, Noriko Sawamura¹, Ringaku Ree¹, Masayuki Hijioka¹, Eikichi Ihara¹, Hisato Igarashi¹, Tetsuhide Ito¹, Takao Ohtsuka², Eiji Oki³, Sunsuke Takahashi⁴, Nobuyoshi Takizawa⁴, Ryoichi Takayanagi¹ (1.Dept.Of Medicine and Bioregulatory Science.Graduate School of Shience. Kyushu Univ.,Fukuoka, Japan, 2.Dept. of Surgery and Oncology,Graduate School of Medical Sciences, Kyushu Univ.,Fukuoka, Japan, 3.Dept. of Surgery and Science,Graduate School of Medical Sciences, Kyushu Univ.,Fukuoka, Japan, 4.Dept. of Anatomic Pathology,Graduate School of Medical Sciences, Kyushu Univ.,Fukuoka, Japan)