^○Motohiro Tani, Kayo Murakami, Kohei Wagatsuma, Tomoya Iida, Motoki Sasaki, Yumiko Naganawa, Shuji Sato, Haruo Shimizu, Hiroyuki Kaneto (Muroran City General Hospital, Hokkaido, Japan)

^○Hirohito Sano, Yoshiaki Shibata, Mayuko Miyamoto, Naoko Tamaki (Div. of Gastroenterology, Tama-Hokubu Medical Center, Tokyo Metropolitan Health and Medical Treatment Corporation, Tokyo, Japan)

^○Yasuhisa Fujino¹, Yoshihiro Inoue¹, Makoto Onodera¹, Satoshi Kikuchi¹, Masayuki Sato¹, Shigeatsu Endo¹, Takayuki Matsumoto², Yasuhiro Takikawa³ (1.Dept. of Critical Care Med., Sch. of Med. Iwate Medical Univ., Morioka, Japan, 2.Dept. of Gastroenterology., Sch. of Med. Iwate Medical Univ., Morioka, Japan, 3.Dept. of Hepatology., Sch. of Med. Iwate Medical Univ., Morioka, Japan)

^○Shotaro Okanoue, Koji Takemoto, Eriko Yasutomi, Tomoko Sunami, Shohei Oka, Hisashi Ishikawa, Daisuke Kawai, Ryuta Takenaka, Hirofumi Tsugeno, Shigeatsu Fujiki (Digestic Endoscopic Center,Tsuyama Central Hospital,Okayama,Japan)

^○Takayuki Sone, Masahira Haneda, Urara Baba, Syuiti Mutou, Toshio Kimura, Yukio Ohara (Div. of Gastroenterology, Hokkaido Medical Center, Sapporo, Japan)