7Drakulovic MB,Torres A,Bauer TT,et al. Supine body position as a risk factor for nosocomial pneumonia in mechanically ventilated pa2tients:A randomized trial[J]. Lancet, 1999,354(9193): 1851 - 1858
8Ashbaugh DG,Bigelow DB, Petty TL, et al. Acute respirtory distress in adults[J ]. Lancer, 1967,2:319 - 323.
9Bernard GR,Artigas A, Brigham KL, et al. The American European consensus conference on ARDS: Definitions mechanism, relevant outcomes,and clinical trial coordination[J].Am J Resp Crit Care Med, 1994,149(ppt 1) :818 - 824.
10Brower R, Wane LB, Benhiaume Y, et al. Treatment of ARDS[J]. Chest, 2001,120(4) : 1347 - 1367.