Meta-Analysis
Copyright ©2014 Baishideng Publishing Group Co.
World J Crit Care Med. Feb 4, 2014; 3(1): 34-41
Published online Feb 4, 2014. doi: 10.5492/wjccm.v3.i1.34
Figure 1
Figure 1 Flow chart of reviewed articles. RCT: Randomized controlled trial; NPPV: Noninvasive positive-pressure ventilation; ICU: Intensive care unit.