Fig. 2From: PM2.5 promotes human bronchial smooth muscle cell migration via the sonic hedgehog signaling pathwayEffects of PM2.5 on HBSMC migration. a HBSMC migration in the control group. b Effects of TAPM2.5 on HBSMC migration. c Effects of WSPM2.5 on HBSMC migration. d Quantitative analysis of HBSMC migration. *, P < 0.05 compared with the controlBack to article page