title: AHA participates in Medicare secondary payer litigation.
mesh_terms: D000573:American Hospital Association; D014487:Centers for Medicare and Medicaid Services, U.S.; D003669:Deductibles and Coinsurance / Q000331:legislation & jurisprudence*; D007351:Insurance, Liability; D006278:Medicare / Q000331:legislation & jurisprudence*; D014481:United States