Breast cancer and hormone replacement therapy.
D001943:Breast Neoplasms / Q000188:drug therapy* / Q000401:mortality; D002277:Carcinoma / Q000188:drug therapy* / Q000401:mortality; D015331:Cohort Studies; D015914:Estrogen Replacement Therapy; D005260:Female; D006801:Humans; D008875:Middle Aged; D012307:Risk Factors