title: Interference.
mesh_terms: D003363:Cost Control / Q000639:trends; D006801:Humans; D007348:Insurance, Health / Q000639:trends*; D006278:Medicare / Q000639:trends*; D011785:Quality Assurance, Health Care / Q000639:trends*; D014481:United States; D014600:Utilization Review / Q000639:trends*