^○Kazuyoshi Yagi, Yujiro Nozawa, Akiko Saka, Atsuo Nakamura (Div. of Internal Medicine, Niigata Prefectural Yoshida Hospital, Tsubame, Japan)

^○TAKAHISA FURUTA¹, Mitsushige Sugimoto², Shu Sahara², Hitomi Ichikawa², Takuma kagami², Yasushi Hamaya³, Moriya Iwaizumi², Satoshi Osawa³, Ken Sugimoto² (1.Center For Clinical Research, Hamamatsu University School of Medicine, Japan, 2.First Department of Medicine, Hamamatsu University School of Medicine, 3.Department of Clinical Oncology, 4.Department of Photodynamic and Endoscopic Medicine)

^○Shuichi Fuki¹, Tatsuya Koshitani¹, Kou Fujiwara¹, Masataka Masuda¹, Keimei Nakano¹, Yoshito Ito² (1.Dept.Of Gastroenterology, Kobe Central Hospital, Kobe, Japan, 2.Kyoto Prefectual Univ of Medicine, Kyoto, Japan)

^○Masahiro Sakaguchi¹, Hiroshi Yamashita², Miyuki Takao¹, Takanori Kuramoto¹, Koji Ogawa¹, Tadahiro Komori¹, Hajime Takahashi³, Keisuke Kiyota⁴, Hitomi Tsujiguchi⁵, Masuyo Murotani⁶ (1.Dept. of Gastroenterology,Moriguchi Keijinkai Hospital, Japan, 2.Dept. of Gastroenterology,Saiseikai Nakatsu Hospital, 3.Takahashi Clinic, 4.Kiyota Clinic, 5.Tsujiguchi Clinic, 6.Murota Clinic)

^○Takeshi Kanno¹, Katsunori Iijima¹, Yasuhiko Abe², Motoki Oyauchi³, Sho Asonuma⁴ (1.Div. of Gastroenterology, Tohoku Univ. School of Medecine, Sendai, Japan, 2.Dept. of Gastroenterology, Yamagata univ. Faculty of Medicine, 3.Dept. of Gastroenterology, Oosaki Citizen Hospital, 4.Dept. of Gastroenterology, South Miyagi Medical Center)