The ethiopathogenic role of oxygen humidifiers connected to intermittent mandatory ventilation valves on nosocomial pneumonias.
D003428:Cross Infection; D004865:Equipment and Supplies, Hospital / Q000009:adverse effects; D006801:Humans; D006813:Humidity / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000209:etiology*; D012122:Ventilators, Mechanical / Q000009:adverse effects