Medicare 1966-2000. 1966.
Overstreet
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AE
D049673:History, 20th Century; D006801:Humans; D007415:Intestinal Obstruction / Q000266:history / Q000628:therapy; D006278:Medicare / Q000266:history; D017664:Uncompensated Care / Q000266:history*; D014481:United States