^○Yuichi Mori, Shinei Kudo, Kunihiko Wakamura (Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan)

^○Ai Fujimoto, Toshio Uraoka, Naohisa Yahagi (Center For Research and Development of Minimally Invasive Treatment, Cancer Center, Keio University, Tokyo, Japan)

^○Noriyuki Hayashi, Hiromi Kataoka, Takashi Joh (Dept. of Gastroenterology and Metabolism,Nagoya City University Graduate School of Medical Science,Nagoya,,Japan)

^○Atsushi Goto¹, Jun Nishikawa², Isao Sakaida² (1.Dept. of Gastroenterology and Hepatology, Hagi Civil Hospital, Yamaguchi, Japan, 2.Dept. of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan)

^○Daisuke Kikuchi, Toshiro Iizuka, mitsuru Kaise (Dept. of Gastroenterology, Toranomon Hospital, Tokyo, Japan)

^○Yoshinori Morita, Tetsuya Yoshizaki, Takeshi Azuma (Dep. of Gastroenterology, Kobe Univ. Sch. of Med., Kobe, Japan)

^○Masakuni Kobayashi^1,2, Kazuki Sumiyama², Hisao Tajiri^1,2 (1.Div. of Gastroenterology & Hepatology, Dept. of Internal Medicine, The Jikei University School of Medicine, Japan, 2.Department of Endoscopy, The Jikei University School of Medicine)

^○Hirohito Mori^1,2, Hideki Kobara¹, Tsutomu Masaki¹ (1.Dept. of Gastroenterology and Neurology, Kagawa University, Japan, 2.Department of Gastroenterological Surgery, Ehime Rosai Hospital, Ehime, Japan)

^○KAZUHIRO KANEKO¹, AKIHIRO SATO², KOHEI SOGA³ (1.National Cancer Center Hospital East, Dept. of Gastroendoscopy, Chiba, Japan., 2.National Cancer Center Hospital East, Dept. of clinical study group, Chiba, Japan., 3.Dept. of Technology. Tokyo Univ. of Science, Tokyo, Japan)

^○Kiyokazu Nakajima (Div. of Next Generation Endoscopic Intervention, Osaka Univ., Osaka, Japan)

^○Kiyoaki Honma¹, Makoto Kobayashi², Yoshitaka Nawata¹ (1.Dept. of Therapeutic Endoscopy, Nihonkai General Hosp., Yamagata, Japan, 2.Dept. of gastroenterology, Yokkaichi Muncipal Hosp., Mie, Japan)

^○Yasuhito Kura (Olympus Corp., Tokyo, Japan)

^○Masahiro Kubo (Medical Systems Research & Development Center, Research & Development Management Headquarters, Fujifilm Corporation, Kanagawa, Japan)

^○Uemura Naomi (Kohnodai Hospital, National Center For Global Health and Medicine, Japan)