title: A study on multiple bile duct carcinoma.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis; D002288:Adenocarcinoma, Mucinous / Q000175:diagnosis; D000231:Adenocarcinoma, Papillary / Q000175:diagnosis; D000368:Aged; D001650:Bile Duct Neoplasms / Q000175:diagnosis* / Q000601:surgery; D001653:Bile Ducts, Intrahepatic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged