^○Ricardo Fonseca (Instituo Português de Oncologia de Lisboa, Lisbon, Portugal)

^○Gen Watanabe, Yoichi Ajioka (Niigata Univ, Grad Sch Med & Dent Sci, Div Mol & Diagnost Pathol, Niigata, Japan)

^○Roos Pouw (Dept. of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, the Netherlands)

^○Yuji Amano (Div. of Endoscopy, Kaken Hospital, International University of Health and Welfare, Japan)

^○Masahiro Saito, Tomoyuki Koike, Kenichirou Nakagawa (Div. of Gastroenterology, Tohoku University Graduate School of Medicine , Sendai, Miyagi , Japan)

^○Hirohito Tanaka¹, Ichiro Oda¹, Yuji Tachimori² (1.Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan, 2.Esophageal Surgery Division, National Cancer Center Hospital, Tokyo, Japan)

^○Makoto Ishihara, Masahiro Tajika, Yasumasa Niwa (Dept. of Endoscopy, Aichi Cancer Center Hospital, Nagoya, Japan)

^○Tomoki Shimizu, Junko Fujisaki, Masami Omae (Dept. of Gastroenterology, The Cancer Institute Hospital, Tokyo, Japan)

^○Akira Matsui, Yasutaka Kuribayashi, mitsuru Kaise (Dept. of Gastroenterology, Toranomon Hospital, Tokyo, Japan)

^○Akiko Takahashi, Tsuneo Oyama, Nobukazu Yorimitsu (Dept. of Endoscopy, Saku Central Hospital Advanced Care Center, Nagano, Japan)