PPOs and the antitrust laws.
D004465:Economic Competition / Q000331:legislation & jurisprudence; D004469:Economics, Hospital; D004470:Economics, Medical; D005245:Fee Schedules / Q000331:legislation & jurisprudence; D007348:Insurance, Health / Q000331:legislation & jurisprudence*; D009096:Multi-Institutional Systems / Q000191:economics; D014481:United States; D014485:United States Federal Trade Commission