The impact of HMO growth on hospital costs and utilization.
D002567:Certificate of Need; D003365:Costs and Cost Analysis; D004469:Economics, Hospital / Q000639:trends*; D006279:Health Maintenance Organizations / Q000191:economics*; D006761:Hospitals / Q000706:statistics & numerical data*; D007250:Inflation, Economic; D008962:Models, Theoretical; D014481:United States