All

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 I01 Social Sciences D012942 +
  I01.261 Economics D004467 +
   I01.261.750 Resource Allocation D040841 +
    I01.261.750.500 Health Care Rationing D015276 
 N03 Health Care Economics and Organizations D004472 +
  N03.349 Health Planning D006285 +
   N03.349.270 Health Care Rationing D015276 
 N05 Health Care Quality, Access, and Evaluation D017530 +
  N05.300 Delivery of Health Care D003695 +
   N05.300.430 Health Services Accessibility D006297 +
    N05.300.430.375 Health Care Rationing D015276