title: Role of hepatitis B virus in primary carcinoma of liver.
mesh_terms: D002759:Adenoma, Bile Duct / Q000209:etiology*; D000328:Adult; D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000209:etiology*; D005260:Female; D006509:Hepatitis B / Q000150:complications*; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D008099:Liver / Q000276:immunology; D008103:Liver Cirrhosis / Q000150:complications; D008113:Liver Neoplasms / Q000209:etiology*; D008297:Male; D008875:Middle Aged
chemical_list: D006514:Hepatitis B Surface Antigens