title: Section on Cancer Chemotherapy, Department of Surgery, Pennsylvania Hospital, Philadelphia.
mesh_terms: D001943:Breast Neoplasms / Q000188:drug therapy*; D005260:Female; D006801:Humans; D011960:Receptors, Estrogen / Q000187:drug effects*; D013629:Tamoxifen / Q000627:therapeutic use*
chemical_list: D011960:Receptors, Estrogen; D013629:Tamoxifen