title: Medicare regs threaten 'controlled' providers.
mesh_terms: D003284:Contract Services / Q000331:legislation & jurisprudence; D005161:Facility Regulation and Control; D006755:Hospital Shared Services / Q000331:legislation & jurisprudence*; D006777:Hospitals, Proprietary; D006788:Hospitals, Voluntary; D007349:Insurance, Health, Reimbursement / Q000331:legislation & jurisprudence; D006278:Medicare / Q000331:legislation & jurisprudence*; D009935:Organizational Affiliation / Q000331:legislation & jurisprudence*; D010067:Ownership; D014481:United States