Oral-contraceptive-associated liver tumours.
D006528:Carcinoma, Hepatocellular / Q000139:chemically induced*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000139:chemically induced*; D008656:Mestranol / Q000009:adverse effects*; D008875:Middle Aged; D009641:Norethynodrel / Q000009:adverse effects*
D003276:Contraceptives, Oral; D009641:Norethynodrel; D008656:Mestranol