The changing hospital economy.
D000553:Ambulatory Care; D003365:Costs and Cost Analysis; D004469:Economics, Hospital; D005102:Health Expenditures; D049673:History, 20th Century; D006739:Hospital Administration; D006761:Hospitals / Q000706:statistics & numerical data; D006801:Humans; D007182:Income; D007348:Insurance, Health; D007350:Insurance, Hospitalization; D008484:Medicaid; D006278:Medicare; D010564:Personnel, Hospital; D011682:Purchasing, Hospital; D012926:Social Control, Formal; D014481:United States