National health insurance and hospital administration.
D000553:Ambulatory Care; D003256:Community Participation; D003365:Costs and Cost Analysis; D005380:Financing, Government; D005102:Health Expenditures; D006279:Health Maintenance Organizations; D006280:Health Workforce / Q000706:statistics & numerical data; D006739:Hospital Administration; D007348:Insurance, Health; D007883:Legislation, Medical; D011787:Quality of Health Care; D012040:Regional Health Planning; D014481:United States