Supine body position as a risk factor for nosocomial pneumonia in mechanically ventilated patients: a randomised trial
Drakulovic, Mitra B ; Torres, Antoni ; Bauer, Torsten T ; Nicolas, Jose M ; Nogué, Santiago ; Ferrer, Miquel
The Lancet (British edition), 1999-11, Vol.354 (9193), p.1851-1858 [Periódico revisado por pares]London: Elsevier Ltd
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