Hospitals: 200 years of improvement.
D000574:American Medical Association; D003695:Delivery of Health Care; D049672:History, 19th Century; D049673:History, 20th Century; D006761:Hospitals / Q000266:history* / Q000592:standards; D007878:Legislation as Topic; D008484:Medicaid; D006278:Medicare; D014481:United States; D014837:Voluntary Health Agencies