^○Yasushi Adachi¹, Kiishige Akino¹, Hiroaki Mita¹, Takefumi Kikuchi¹, Kentaro Yamashita², Yoshiaki Arimura², Takao Endo¹ (1.Div. of Gastroenterology, Dept. of Internal Med., Sapporo Shirakaba-Dai Hospital, Sapporo, Japan, 2.Dept of Gastroenterology, Rheumatology, and Clinical Immunology, Sch. of Med., Sapporo Med. Univ., Sapporo, Japan)

^○Hideaki Motohashi¹, Noriyuki Kimura², Ikuo Hojo¹, Yasushi Okubo¹, Tadao Murayama¹ (1.Gastrointestinal Surgery, Moriyama Memorial Hospital, Tokyo, Japan, 2.Shounai Amarume Hospital Yamagata, JApan)

^○Tomoko Nishimura¹, Tsuyoshi Ishikawa², Mami Kodama³, Satoshi Nishimura⁴, Hideyuki Konishi², Satoshi Kokura², Yuji Naito², Yoshito Ito² (1.Kyoto Ohara Memorial Hospital., Kyoto, Japan, 2.Molecular Gastroenterology and Hepatology Kyoto Prefectural University of Medicine Graduate School of Medical Science., Kyoto, Japan, 3.Gosho-Minami Rehabilitation Clinic., Kyoto, Japan, 4.Aiseikai Yamashina Hospital., Kyoto, Japan)

^○Hideo Ohkami¹, Kazuhiro Tsukada² (1.Dept. of Surgery, Toyama Teishin Hosp., Toyama, Japan, 2.Dept. of Surgery and Science, Graduate Sch. of Med. and Pharm. Sciences for Research,Toyama Univ.,Toyama, Japan)

^○Akihiko Itoh¹, Hiro Mizuta¹, Shigeki Sakai¹, Takao Saotome¹, Tomoyuki Tsujikawa¹, Yorihiro Nishiyama² (1.Div. of Gastroenterology, National Hospital Organization, Higashi-Ohmi General Medical Center, Shiga, Japan, 2.Dr. Nishiyama.s office, Shiga, Japan)

^○Shintaro Sawada, Akihiro Tamoto, Kohei Hosoda, Takumi Onoyama, Soichiro Kawata, Sohei Yamamoto, Yuichiro Ikebuchi, Ryo Abe, Kazuya Matsumoto, Koichiro Kawaguchi, Kenichi Harada, Kazuo yashima, Yoshikazu Murawaki (Div. of Medicine and Clinical Science, Faculty of Medicine, Tottori Univ., Yonago, Japan)