title: Hepatocellular carcinoma in a patient on oral contraception who had been exposed to hepatitis B virus.
mesh_terms: D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis*; D006528:Carcinoma, Hepatocellular / Q000139:chemically induced / Q000209:etiology*; D002353:Carrier State; D004338:Drug Combinations; D045166:Estradiol Congeners / Q000009:adverse effects*; D004997:Ethinyl Estradiol / Q000009:adverse effects*; D005260:Female; D006509:Hepatitis B / Q000150:complications*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006801:Humans; D008113:Liver Neoplasms / Q000139:chemically induced / Q000209:etiology*; D009640:Norethindrone / Q000009:adverse effects*
chemical_list: D000914:Antibodies, Viral; D004338:Drug Combinations; D045166:Estradiol Congeners; D006510:Hepatitis B Antibodies; D004997:Ethinyl Estradiol; D009640:Norethindrone