Pre- and postmenopausal breast cancer.
D001942:Breast Feeding; D001943:Breast Neoplasms / Q000453:epidemiology*; D003276:Contraceptives, Oral; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008593:Menopause; D008598:Menstruation; D008875:Middle Aged; D010298:Parity; D012306:Risk
D003276:Contraceptives, Oral