80. The National Institutes of Health celebrates a birthday.
D003813:Dentistry; D049672:History, 19th Century; D049673:History, 20th Century; D009316:National Institutes of Health (U.S.) / Q000266:history*; D009934:Organization and Administration; D012106:Research; D012108:Research Personnel; D012109:Research Support as Topic; D014481:United States