Fig. 2From: Effects of PEEP on regional ventilation-perfusion mismatch in the acute respiratory distress syndromeRegional fraction of wasted ventilation (blue boxes) and wasted perfusion (red boxes) at PEEP 5 and 15 cmH2O. Results are expressed in mean and Tukey box plots. ND: non-dependent part of the lungs, M: middle part of the lungs, D: dependent part of the lungs. *p < 0.05, †p < 0.01 by paired t-testBack to article page