title: Letter: Epidemiology of hepatitis B and primary hepatic carcinoma.
mesh_terms: D005260:Female; D006115:Greece; D006509:Hepatitis B / Q000453:epidemiology* / Q000276:immunology; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006801:Humans; D008113:Liver Neoplasms / Q000453:epidemiology* / Q000276:immunology; D008297:Male
chemical_list: D006511:Hepatitis B Antigens