title: Single-drug vs combination cytotoxic chemotherapy in advanced breast cancer: a randomized study.
mesh_terms: D000368:Aged; D000970:Antineoplastic Agents / Q000008:administration & dosage* / Q000009:adverse effects; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000401:mortality; D002986:Clinical Trials as Topic; D003520:Cyclophosphamide / Q000008:administration & dosage; D004359:Drug Therapy, Combination; D005260:Female; D005472:Fluorouracil / Q000008:administration & dosage; D006801:Humans; D008727:Methotrexate / Q000008:administration & dosage; D008875:Middle Aged; D011241:Prednisone / Q000008:administration & dosage; D011446:Prospective Studies; D011897:Random Allocation; D014750:Vincristine / Q000008:administration & dosage
chemical_list: D000970:Antineoplastic Agents; D014750:Vincristine; D003520:Cyclophosphamide; D005472:Fluorouracil; D011241:Prednisone; D008727:Methotrexate