title: Letter: Use of ineffective agents in combination chemotherapy.
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D002945:Cisplatin / Q000627:therapeutic use; D004341:Drug Evaluation; D004359:Drug Therapy, Combination; D006801:Humans
chemical_list: D000970:Antineoplastic Agents; D002945:Cisplatin