Surgery centers warned of hospital lobby tactics.
D000573:American Hospital Association; D008119:Lobbying; D010067:Ownership / Q000331:legislation & jurisprudence*; D018584:Physician Self-Referral / Q000331:legislation & jurisprudence*; D013531:Surgicenters / Q000331:legislation & jurisprudence* / Q000600:supply & distribution; D014481:United States