Fig. 2
CO2 fractional laser promotes 5E permeability through hypertrophic scars in vitro. a Comparison of the permeation of 5E and 5EL group in a 24-h study of human hypertrophic scar in vitro. Values were expressed as the mean ± SD. n = 6. b The accumulative retention of 5-FU in hypertrophic scar in vitro after application for 24 h. n = 6. ***p value < 0.001 was considered statistically extremely significant, ****p value < 0.0001 was considered statistically highly extremely significant