National health insurance and the elderly.
D000368:Aged; D001315:Australia; D002170:Canada; D003365:Costs and Cost Analysis; D003695:Delivery of Health Care; D006299:Health Services for the Aged / Q000191:economics*; D006801:Humans; D009310:National Health Insurance, United States; D009313:National Health Programs; D006113:United Kingdom; D014481:United States