Medicare provides foundation for NHI.
D000368:Aged; D003365:Costs and Cost Analysis; D003669:Deductibles and Coinsurance; D004608:Eligibility Determination; D005382:Financing, Personal; D006801:Humans; D008134:Long-Term Care; D008484:Medicaid; D006278:Medicare; D009313:National Health Programs; D009934:Organization and Administration; D013222:State Medicine; D014481:United States