Bronchial mucosal gene expression shown as donor/native ratio (relative to 18S mRNA) in subjects without airway stents (open circles) and with airway stents (blue circles) for FLT1, HMOX1, KDR, TIE2, VEGFA, and TGFB1 at 4, 7, and 10 weeks post-transplant. Error bars are median with IQR. *P<0.05 for group differences within each time point by 2-way ANOVA with the Benjamin-Hochberg post-hoc test.