title: Letter: Alpha fetoprotein and cholangiocellular carcinoma.
mesh_terms: D002759:Adenoma, Bile Duct / Q000097:blood / Q000175:diagnosis* / Q000276:immunology; D000328:Adult; D000510:Alpha-Globulins / Q000032:analysis*; D001650:Bile Duct Neoplasms / Q000097:blood / Q000175:diagnosis* / Q000276:immunology; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D006528:Carcinoma, Hepatocellular / Q000175:diagnosis / Q000276:immunology; D003937:Diagnosis, Differential; D005326:Fetal Proteins / Q000032:analysis*; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis / Q000276:immunology; D008297:Male
chemical_list: D000510:Alpha-Globulins; D002272:Carcinoembryonic Antigen; D005326:Fetal Proteins