title: At pill's 30th birthday, breast cancer question is unresolved.
authors.affiliation: Alan Guttmacher Institute.
authors.forename: F A
authors.initials: FA
authors.lastname: Althaus
authors.forename: L
authors.initials: L
authors.lastname: Kaeser
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000139:chemically induced* / Q000453:epidemiology; D003278:Contraceptives, Oral, Hormonal / Q000008:administration & dosage / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010298:Parity; D012307:Risk Factors
chemical_list: D003278:Contraceptives, Oral, Hormonal