title: New legislation tightens PPS.
mesh_terms: D003365:Costs and Cost Analysis; D004501:Education, Medical / Q000191:economics; D005102:Health Expenditures; D006801:Humans; D006278:Medicare / Q000191:economics; D011445:Prospective Payment System / Q000191:economics / Q000331:legislation & jurisprudence*; D012051:Reimbursement Mechanisms / Q000331:legislation & jurisprudence*; D014481:United States