^○Tomoyuki Yada, Koichi Ito, Keigo Suzuki, Koki Okubo, Yoichiro Aoki, Naoki Akazawa, Hitohiko Koizuka, Naomi Uemura (Dept. of Gastroenterology & Hepatology, Kohnodai Hospital, National Center For Global Health and Medicine, Chiba, Japan)

^○Yoshitaka Hata^1,2, Seiichiro Sakisaka^1,2, Mio Kawamoto^1,2, Tomoyuki Kurashige^1,2, Fusako Kojima^1,2, Masafumi Wada^1,2, Hiroyuki Fujii^1,2, Yoichiro Iboshi^1,2, Nobito Higuchi^1,2, Nao Fujimori^1,2, Yorinobu Sumida^1,2, Motoyuki Koujima^1,2, Tsuyoshi Yoshimoto^1,2, Ken Kawabe^1,2, Kunitaka Fukuizumi^1,2, Makoto Nakamuta^1,2, Naohiko Harada^1,2, Kazuhiko Nakamura³ (1.Dept. of Gastroenterology, Kyushu Medical Center, Fukuoka, Japan, 2.Clinical Research Institute, Kyushu Medical Center, Fukuoka, Japan, 3.DeDepartment of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan)

^○Tatsuyuki Watanabe¹, Keiichiro Kume¹, Shinsuke Kumei¹, Ichiro Yoshikawa², Masaru Harada¹ (1.Third Dept. of Internal Medicine, University of Occupational and Environmental Health, Kitakyusyu, Japan, 2.Dept. of Endoscopic Diagnostics and Therapeutics, University Hospital of Occupational and Environmental Health, Kitakyusyu, Japan)

^○Fumisato Sasaki, Hitomi Hamamoto, Yuga Komaki, Junichi Nakazawa, Shiho Arima, Yuichiro Nasu, Shinichi Hashimoto, Hiroki Taguchi, Hitoshi Setoyama, Shuji Kanmura, Masatsugu Numata, Akio Ido (Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan)

^○Naohisa Yoshida¹, Yuji Naito¹, Kiyoshi Ogiso¹, Ryohei Hirose¹, Osamu Dohi¹, Kazuhiro Katada¹, Kazuhiro Kamada¹, Kazuhiko Uchiyama¹, Osamu Handa¹, Hideyuki Konishi¹, Yutaka Inada², Yoshito Ito¹ (1.Dept. of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan, 2.Deapartment of Gastroenterology, North Medical Center, Kyoto Prefectural University of Medicine)