Has the "iron lung" been superseded?
D019069:Cell Respiration; D006801:Humans; D007501:Iron; D011051:Poliomyelitis / Q000150:complications*; D012119:Respiration; D012121:Respiration, Artificial; D015919:Ventilators, Negative-Pressure
D007501:Iron
POLIOMYELITIS/complications; RESPIRATION, ARTIFICIAL