title: Current concepts in cancer: updated breast cancer--IV. Chemotherapy and locally advanced: what is the optimum number of agents?
mesh_terms: D001943:Breast Neoplasms / Q000188:drug therapy*; D002470:Cell Survival / Q000187:drug effects; D004347:Drug Interactions; D004359:Drug Therapy, Combination / Q000009:adverse effects; D006801:Humans