title: The changing landscape of Medicare secondary payer rules.
mesh_terms: D014487:Centers for Medicare and Medicaid Services, U.S.; D019411:Clinical Laboratory Techniques / Q000191:economics; D017408:Guidelines as Topic; D007349:Insurance, Health, Reimbursement / Q000331:legislation & jurisprudence*; D006278:Medicare / Q000331:legislation & jurisprudence*; D014481:United States