title: Association between changes in hormone replacement therapy and breast density.
authors: J
authors: J
authors: Fiorica
mesh_terms: D001940:Breast / Q000187:drug effects*; D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000453:epidemiology*; D015914:Estrogen Replacement Therapy; D004967:Estrogens / Q000494:pharmacology*; D005260:Female; D006801:Humans; D008327:Mammography
chemical_list: D004967:Estrogens