Fig. 1From: Airway surface liquid from smokers promotes bacterial growth and biofilm formation via iron-lactoferrin imbalanceS. aureus and P. aeruginosa grow more in the BAL from smokers compared to non-smokers. a S. aureus bacterial growth assessed by RLU at 30 min (**p < 0.0001 by unpaired t-test). b P. aeruginosa bacterial growth by RLU at 6 h. (*p = 0.0493 by unpaired t-test)Back to article page