Toward a national medical care system: the historical background.
D002170:Canada; D005060:Europe; D049672:History, 19th Century; D049673:History, 20th Century; D009310:National Health Insurance, United States / Q000266:history* / Q000331:legislation & jurisprudence; D009313:National Health Programs / Q000266:history* / Q000331:legislation & jurisprudence; D011057:Politics; D018855:Single-Payer System; D012950:Socialism; D014481:United States