^○Koichiro Fukuda, Kazuya Suzuki, Masakazu Akahonai, Yujiro Kawakami, Hiroshi Nasuno, Kenta Honma, Kazuhiko Yonezawa, Takashi Abe (Kushiro City General Hospital Gastrointestinal Medicine, Japan)

^○MICHITAKA KAWANO, Seiji Kaino, Shuhei Shinoda, Hirofumi Harima, Shigeyuki Suenaga, Isao Sakaida (Sch. of Med. Yamaguchi, Yamaguchi, Japan)

^○Noriko Sasaki, Jun Hamanaka, Marina Hirao, Yuithiro Toduka, Satoshi Komiyama, Satoshi Nakao, Masahiro Terada, Shuhei Nishigori, Yuki Miura, Hiroyuki Oka, Fumio Suzaki, Hiroshi Okazaki (Yokohama Minami Kyousai Hospital, Gastroenterology, Kanagawa, Japan)

^○Takeshi Tsushima, Tamito Sasaki, Masahiro Serikawa, Tomoyuki Minami, Yasutaka Ishii, Takashi Ishigaki, Teruo Mouri, Satoshi Yoshimi, Tomofumi Tsuboi, Akinori Shimizu, Keisuke Kurihara, Yumiko Tatsukawa, Eisuke Miyaki, Ryota Kawamura, Kazuaki Chayama (Dept. of Gastroenterology and Metabolism, Hiroshima Univ. Hospital, Hiroshima, Japan)