^○Osamu Ogawa, Akira Matsui, Ryusuke Kimura, Yasutaka Kuribayashi, Kosuke Nomura, Akihiro Yamada, Tsukasa Furuhata, Satoshi Yamashita, Daisuke Kikuchi, Toshifumi Mitani, Toshiro Iizuka, Shu Hoteya, mitsuru Kaise (Det. of Gastroenterology, Toranomon Hospital, Tokyo, Japan)

^○Minoru Yamaoka¹, Hideki Ohgo¹, Hiroyuki Imaeda¹, Keigo Ashitani¹, Takeru Kusano¹, Satoshi Noguchi¹, Ryu Kanno¹, Takehito Kobayashi¹, Shunsuke Kinoshita¹, Shinichiro Iida¹, Kiyoaki Inoue¹, Hidekazu Kayano², Yoshitaka Miyagawa¹, Keiji Yamamoto¹, Hidetomo Nakamoto¹ (1.Dept. of General Internal Medicine, Saitama Medical University, Saitama, Japan, 2.Department of Pathology, Saitama Medical University, Saitama, Japan)

^○Shinsuke Hirai¹, Manabu Ishii¹, Ken-ichi Tarumi¹, Tomoari Kamada¹, Minoru Fujita¹, HIROSHI MATSUMOTO¹, Takahisa Murao¹, Motoyasu Osawa¹, RUI NAKATO¹, ASAMI HAYASHIDA¹, YASUAKI IWAMOTO¹, Shinya Fukushima¹, Akiko Shiotani¹, TAKASHI AKIYAMA², Jiro Hata³, Ken Haruma¹ (1.Div. of Gastroenterology, Dept. of Internal Medicine, Kawasaki Med. School, Okayama, Japan, 2.Div. of Pathology, Dept. of Medicine, Kawasaki Med. School, Okayama, Japan, 3.Div. of Endoscopy and Ultrasound, Dept. of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School, Okayama, Japan)

^○daisuke namima¹, Hiroshi Matuoka¹, Eri Kuwamura¹, Nobuya Kobayashi¹, Keiko Watanabe¹, Takuma Yamashita², Kiyoyuki Kobayashi², Tsutomu Masaki² (1.General Hospital, Yashima, Kagawa, Japan, 2.Dept. of Gastroenterology and Neurology, Sch. of Med. Kagawa Univ., Kagawa, Japan)

^○Shinichi Kawano¹, Motohiro Esaki¹, Minako Hirahashi², Kiyoshi Fujisawa³, Takanari Kitazono¹ (1.Dept. of Medicine and Clinical Sience, Graduate Sch. of Medical Sciences, Kyushu Univ., Fukuoka, Japan, 2.Dept. of Anatomic Pathology, Pathological Sciences Graduate Sch. of Medical Sciences, Kyushu Univ., Fukuoka, Japan, 3.JCHO Kyushu Hospital, Kitakyushu, Japan)