Affiliation: | 1.Department of Gastroenterological Surgery, Gastroenterological Center, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan ;2.Department of Hepato-Biliary-Pancreatic Medicine, Gastroenterological Center, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan ;3.Department of Lower Gastrointestinal Medicine, Gastroenterological Center, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan ; |