title: A study of hepatitis-associated antigen in hospital patients.
mesh_terms: D000328:Adult; D001660:Biliary Tract Diseases / Q000276:immunology; D001782:Blood Donors; D006528:Carcinoma, Hepatocellular / Q000276:immunology; D005260:Female; D006505:Hepatitis / Q000276:immunology; D006511:Hepatitis B Antigens; D006801:Humans; D008103:Liver Cirrhosis / Q000276:immunology; D008113:Liver Neoplasms / Q000276:immunology; D008297:Male; D008875:Middle Aged
chemical_list: D006511:Hepatitis B Antigens