Fifty years of U.S. health care policy.
D003695:Delivery of Health Care / Q000639:trends; D005381:Financing, Organized / Q000639:trends; D006291:Health Policy / Q000266:history*; D049673:History, 20th Century; D008484:Medicaid / Q000639:trends; D006278:Medicare / Q000639:trends; D009310:National Health Insurance, United States; D011057:Politics; D011639:Public Opinion; D014481:United States