Fig. 5From: Exhaled particles and small airwaysDPPC (1,2-dipalmitoyl-sn-glycero-3-phosphocholine) mass and exhaled sampled particle mass as determined in samples from eleven individuals that performed ten exhalations using the airway reopening maneuver. Note the linear association through the origin between the collected particle mass and collected DPPC mass. The DPPC weight percent concentration (wt%) is shown for each sample in the lower panel. By permission of the authorBack to article page