approaching significancep = 0.0699
As assessed by BrdU incorporation, after 24 h of culture (see supplementary material, Figure S7 ), in E15 organs exposed to TGFβ receptor blockade there was no change in the SM compartment, a significant ( p = 0.0086) decrease in the adventitial compartment, and an increase approaching significance ( p = 0.0699) in the epithelial compartment.