title: Trends in health-insurance operating expenses.
mesh_terms: D003365:Costs and Cost Analysis; D004469:Economics, Hospital; D004470:Economics, Medical; D005102:Health Expenditures; D007348:Insurance, Health; D007350:Insurance, Hospitalization; D007357:Insurance, Physician Services; D007878:Legislation as Topic; D009934:Organization and Administration; D014481:United States