title: DRGs--five years later.
mesh_terms: D003953:Diagnosis-Related Groups; D004469:Economics, Hospital; D006271:Health Facility Closure; D006739:Hospital Administration; D006278:Medicare / Q000191:economics; D011445:Prospective Payment System / Q000331:legislation & jurisprudence / Q000639:trends; D013675:Technology, High-Cost; D014481:United States