title: Contraceptive steroids and breast cancer.
mesh_terms: D001943:Breast Neoplasms / Q000188:drug therapy*; D003276:Contraceptives, Oral / Q000627:therapeutic use*; D003278:Contraceptives, Oral, Hormonal / Q000627:therapeutic use*; D004967:Estrogens / Q000097:blood; D005260:Female; D006801:Humans; D009364:Neoplasm Recurrence, Local
chemical_list: D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal; D004967:Estrogens