title: Systemic therapy of breast cancer.
mesh_terms: D000368:Aged; D000728:Androgens / Q000627:therapeutic use; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D001943:Breast Neoplasms / Q000188:drug therapy*; D004967:Estrogens / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008593:Menopause; D008875:Middle Aged; D010166:Palliative Care; D013629:Tamoxifen / Q000627:therapeutic use
chemical_list: D000728:Androgens; D004967:Estrogens; D013629:Tamoxifen