^○Masami Omae, Junko Fujisaki, Tomoki Shimizu, Masahiro Igarashi (Dept. of Gastroenterology, Cancer Institute Hospital, Japanese Foundation For Cancer Research, Tokyo, Japan)

^○Masahiko Ohtaka¹, Kazuhiko Takaso¹, Mika Miura¹, Mitsuhiko Hanawa¹, Yuichi Hirose¹, Atsuko Kitahashi¹, Emi Sakuma¹, Yosioki Yoda¹, Tadashi Sato², Nobuyuki Enomoto² (1.Yamanashi Koseiren Health Care Center, Japan, 2.First Department of Internal Medicine, University of Yamanashi)

^○Hiroto Miwa¹, Yoshikazu Kinoshita², Chen Lan³ (1.Div. of Gastroenterology, Dept. of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan, 2.Second Department of Internal Medicine, Shimane University Faculty of Medicine, Shimane, Japan, 3.Clinical Science Division, AstraZeneca K.K., Osaka, Japan)

^○Noriyuki Horiguchi, Tomomitsu Tahara, dai Yoshida, Tomohiko Kawamura, Masaaki Okubo, Takamitsu Ishizuka, TOMOYUKI SHIBATA, Ichiro Hirata (Dept. of Gastroenterology,Sch.Of Med.Fujita Health Univ. Nagoya,Japan)

^○Seiji Kimura¹, Yuuki Hizawa¹, Daisuke Nisiya¹, Fumika Ishibashi^1,3, Takanori Hamadate^1,3, Masanori Tanaka², Shinsaku Fukuda³ (1.Div. of Gastroenterology, Aomori Rosai Hospital, Hachinohe, Japan, 2.Department of Pathology and Laboratory Medicine, Hirosaki City Hospital, 3.Graduate School of Medicine, Gastroenterology and Hematology, Hirosaki University)