^○Tetsuro Yamazato¹, Yosuke Iriguchi¹, Jouji Oda¹, Masaru Mizutani¹, Satoshi Takayanagi¹, Yasuhiro Tomino¹, Daisuke Kishi¹, Hidetoshi Omura¹, Koichi Itabashi¹, Naoya Fujita¹, Ayako Kamiya¹, Tozo Hosoi¹, Akihiko Yamamura² (1.Dept. of Gastroenterology, Tokyo Metropolitan Cancer Detection Center, Tokyo, Japan, 2.Department of an inspection, Tokyo Metropolitan Cancer Detection Center, Tokyo, Japan)

^○Norihiro Hanabata^1,2, Kazunori Takahashi^1,2, Yoichi Yamamoto¹, Koji Shimaya^1,2, Kosuke Kanazawa¹, Satoko Itoh¹, Hiroshi Numao¹, Masaki Munakata¹, Shinsaku Fukuda² (1.Dept. Gastroenterology, Aomori Prefectural Central Hospital, Aommori, Japan, 2.Dept. Gastroenterology and Hematology, Hirosaki Univ. Graduate Sch. of Med.)

^○Hidetaka Hamamoto, Akimichi Chonan, Masato Nakahori, Junichi Ishibashi, Tomoki Matsuda, Toshiyuki Mishima, Naoto Miyake, Hiroaki Takabayashi, Syun Satoshi, Hajime Yamaoka, Toru Okuzono, Hiroyuki Mizuno, Keiitirou Nakajyo, Rintaro Hashimoto, Hayato Aoki, Kousuke Nihei, Tomoyuki Iwaki, Sari Kohki (Digestive Endoscopic Center,Sendai Kousei Hospital, Sendai, Japan)

^○Minoru Tomizawa¹, Fuminobu Shinozaki², Rumiko Hasegawa³, Yoshinori Shirai³, Yasufumi Motoyoshi⁴, Takao Sugiyama⁵, Shigenori Yamamoto⁶, Naoki Ishige⁷ (1.Dept. of Gastroenterology, National Shimoshizu Hospital, Japan, 2.Dept. of Radiology, National Shimoshizu Hospital, 3.Dept. of Surgery, National Shimoshizu Hospital, 4.Dept. of Neurology, National Shimoshizu Hospital, 5.Dept. of Rheumatology, National Shimoshizu Hospital, 6.Dept. of Pediatrics, National Shimoshizu Hospital, 7.Dept. of Neurosurgery, National Shimoshizu Hospital)