著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) TAKEHARA T,A case report of primary extranodal non-Hodgkin's lymphoma of the extrahepatic bile duct,Acta Hepatol Jpn,,,1989,88,,247-252,https://cir.nii.ac.jp/crid/1572261549987247232,