Department of Gastroenterology, Okayama University Hospital, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan

Yasushi Yamasaki

Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan

Motohiko Kato, Atsushi Nakayama & Naohisa Yahagi

Department of Gastrointestinal Oncology and Department of Genetic Oncology, Division of Hereditary Tumors, Osaka International Cancer Institute, Osaka, Japan

Yoji Takeuchi

Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan

Shu Hoteya

Department of Endoscopy, Saku Central Hospital Advanced Care Center, Nagano, Japan

Tsuneo Oyama

Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan

Satoru Nonaka & Ichiro Oda

Department of Gastroenterology, Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan

Shoichi Yoshimizu

Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan

Masao Yoshida

Department of Gastrointestinal Endoscopy, NTT Medical Center Tokyo, Tokyo, Japan

Ken Ohata

Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Japan

Yoshimasa Miura

Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan

Yuko Hara

Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Kanazawa, Japan

Shigetsugu Tsuji

Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan

Osamu Dohi

Department of Gastroenterology, Juntendo University School of Medicine, Tokyo, Japan

Hiroya Ueyama

Division of Gastroenterology, Matsuyama Red Cross Hospital, Matsuyama, Japan

Koichi Kurahara

Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan

Tomoaki Tashima

Department of Gastroenterological and General Surgery, Faculty of Medicine, Kyorin University, Tokyo, Japan

Nobutsugu Abe

Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan

Toshiharu Mitsuhashi