Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TOKUHARA Katsuji and YAMANAKA Hideharu and ITO Daisuke and KOSHIBA Takatomo and SATO Masahito and KOGIRE Masafumi,A Case of Metastatic Carcinoma at an Anal Fistula,The Japanese journal of gastroenterological surgery,03869768,The Japanese Society of Gastroenterological Surgery,2001-11-01,34,11,1690-1694,https://cir.nii.ac.jp/crid/1573105976741414400,