[Use of oral contraceptives and the occurrence of breast cancer].
D000293:Adolescent; D000328:Adult; D001943:Breast Neoplasms / Q000139:chemically induced / Q000453:epidemiology*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003278:Contraceptives, Oral, Hormonal / Q000009:adverse effects*; D004363:Drug Utilization / Q000639:trends; D005260:Female; D006801:Humans; D009664:Norway
D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal
Forbruket av p-piller og insidens av brystkreft.