Competition: a surprising way to hold health costs down.
D003365:Costs and Cost Analysis; D004469:Economics, Hospital / Q000331:legislation & jurisprudence; D005102:Health Expenditures / Q000331:legislation & jurisprudence / Q000639:trends; D006278:Medicare / Q000191:economics; D009310:National Health Insurance, United States / Q000331:legislation & jurisprudence; D014481:United States