^○Fumihiko Toyoshima, Toshihiko Tomita, Takahisa Yamasaki, Tomoaki Kono, Takashi Kondo, Katsuyuki Tozawa, Hisatomo Ikehara, Yoshio Ouda, Tadayuki Oshima, Hirokazu Fukui, Jiro Watari, Hiroto Miwa (Hyogo College of Medicine, Hyogo Japan)

^○Shunsuke Urayoshi, Satohiro Matsumoto, Hiroyuki Tamura, Haruka Otake, Takeshi Uehara, Yuji Shindo, Harumi Kawamura, Yuzo Otaki, Masatoshi Ikeda, Kenichi Yamanaka, Shinya Ushimaru, Takeharu Asano, Masanori Fukunishi, Takaaki Iwaki, Noriyoshi Sagihara, Shinichi Asabe, Hiroyuki Miyatani, Yukio Yoshida (Dept. of Gastroenterology, Saitama Medical Center, Jichi Medical University, Saitama, Japan)

^○Nami Nakamura¹, Keiko Minashi², Rino Nankinzan¹, Osamu Sugita¹, Hiroyuki Arai¹, Emiri Kita¹, Akiko Tsujimoto¹, Nei Soma¹, Takuto Suzuki³, Kentaro Sudo¹, Kazuyoshi Nakamura¹, Shuichi Hironaka², Taro Hara³, Tadamichi Denda¹, Taketo Yamaguchi¹ (1.Div. of Gastroenterology,Chiba Cancer Center,Chiba,Japan, 2.Div. of Clinical Research Promotion,Chiba cancer center,Chiba,Japan, 3.Div. of endoscopy,Chiba cancer center,Chiba,Japan)

^○Takuya Komura¹, Youhei Marukawa¹, Jun Seishima¹, Masatoshi Yamato¹, Masaki Miyazawa¹, Kiichiro Kaji¹, Hajime Ota¹, Masato Kayahara², Masashi Unoura¹ (1.Kanazawa Medical Center, Japan, 2.Kanazawa Medical Center)