title: Oral contraceptives, tobacco smoking, and breast cancer risk.
authors.forename: D
authors.initials: D
authors.lastname: Trichopoulos
authors.forename: K
authors.initials: K
authors.lastname: Katsouyanni
mesh_terms: D001943:Breast Neoplasms / Q000209:etiology*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects*
chemical_list: D003276:Contraceptives, Oral