title: Oral contraceptives and premenopausal breast cancer.
authors: Norwegian Radium Hospital, Oslo.
authors: E
authors: E
authors: Lund
mesh_terms: D000367:Age Factors; D001943:Breast Neoplasms / Q000139:chemically induced* / Q000453:epidemiology / Q000401:mortality; D016022:Case-Control Studies; D015984:Causality; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D015994:Incidence; D009664:Norway / Q000453:epidemiology; D012307:Risk Factors; D015996:Survival Rate; D013548:Sweden / Q000453:epidemiology
chemical_list: D003276:Contraceptives, Oral