^○Tsutomu Namikawa¹, Eri Munekage¹, Masaya Munekage¹, Mai Shiga¹, Hiromichi Maeda², Hiroyuki Kitagawa¹, Ken Okamoto², Motohiro Takasaki³, Michiya Kobayashi², Kazuhiro Hanazaki¹ (1.Dept. of Surgery, Kochi Med. Sch., Kochi, Japan, 2.Dept. Human Health and Med. Sciences, Kochi Med. Sch., Kochi, Japan, 3.Takasaki Cliniic)

^○Kaori Makino, Shigeaki Mizuno, Takashi Miyata, Kyouhei Ooyama, Akiko Haruta, Shihoko Kawashima, Yuuta Horiuchi, Toshiki Uehara, Daisuke Koushi, Maho Iwamoto, Hideki Sato, Naoto Harasawa, Hiroshi Matsumura, Mitsuhiko Moriyama (Div.Od Gastroenterology and Hepatology,Dept.Of Med.,Nihon Univ.,Sch.Of Med.,Tokyo,Japan)

^○Kazuo Suga, Shinya Sano, Naoki Koga, Kenya Chiba (Dept. of Surgery,Nishi Isahaya Hospital , Japan)

^○Mao Matsubayashi, Yousuke Kunishi, Yoshihumi Ono, Yuri Iwata, Masatomo Kanno, Koichiro Yoshie, Setsuo Tamai, Yoshio Kato (Kanagawa Prefectural Ashigarakami Hospital, Kanagawa, Japan)

^○Yoshihiko Ozaki¹, Hiroyuki Suto¹, Takuto Nosaka¹, Yasusi Saito¹, Yatsushi Naito¹, Kazuto Takahashi¹, Kazuya Ofuji¹, Hidetaka Matsuda¹, Masahiro Otani¹, Katsushi Hiramatsu¹, Tomoyuki Nemoto¹, Yoshiaki Imamura², Yasunari Nakamoto¹ (1.Second Dept. of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan, 2.Department of Pathology, University of Fukui Hospital, Fukui, Japan)