How insurers' bargaining power affects drug prices in Medicare Part D.
D003132:Commerce / Q000191:economics*; D016527:Drug Costs; D004345:Drug Industry / Q000191:economics*; D006801:Humans; D054524:Medicare Part D / Q000191:economics*; D017008:Negotiating; D004364:Pharmaceutical Preparations / Q000191:economics*; D055553:Prescription Drugs / Q000191:economics*; D014481:United States
D004364:Pharmaceutical Preparations; D055553:Prescription Drugs