Letter: Hepatocellular carcinoma and oral contraceptives.
D006528:Carcinoma, Hepatocellular / Q000139:chemically induced*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000139:chemically induced*
D003276:Contraceptives, Oral