A historical vignette: intensive care.
D003422:Critical Care / Q000266:history; D049673:History, 20th Century; D006801:Humans; D007362:Intensive Care Units / Q000266:history*; D008396:Maryland; D011052:Poliomyelitis, Bulbar / Q000628:therapy; D012138:Respiratory Therapy / Q000266:history*; D014481:United States