title: Restrictive agreements in emergency medicine contracts.
mesh_terms: D003284:Contract Services / Q000331:legislation & jurisprudence*; D004465:Economic Competition / Q000331:legislation & jurisprudence*; D004635:Emergency Medicine / Q000331:legislation & jurisprudence*; D006801:Humans; D010820:Physicians / Q000331:legislation & jurisprudence; D014481:United States