title: [Clinical studies on HBs antigen positive in the aged].
mesh_terms: D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000276:immunology; D002353:Carrier State / Q000276:immunology*; D005260:Female; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D008103:Liver Cirrhosis / Q000276:immunology; D008107:Liver Diseases / Q000276:immunology*; D008113:Liver Neoplasms / Q000276:immunology; D008297:Male
chemical_list: D006514:Hepatitis B Surface Antigens