All

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 N03 Health Care Economics and Organizations D004472 +
  N03.219 Economics D004467 +
   N03.219.521 Financing, Organized D005381 +
    N03.219.521.576 Insurance D007341 +
     N03.219.521.576.343 Insurance, Health D007348 +
      N03.219.521.576.343.900 National Health Insurance, United States D009310 
 N03 Health Care Economics and Organizations D004472 +
  N03.349 Health Planning D006285 +
   N03.349.550 National Health Programs D009313 +
    N03.349.550.610 National Health Insurance, United States D009310