title: Breast cancer and oral contraception.
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D001943:Breast Neoplasms / Q000139:chemically induced*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D004285:Dogs; D004739:England; D005260:Female; D005858:Germany; D000882:Haplorhini; D006801:Humans; D014481:United States
chemical_list: D003276:Contraceptives, Oral