Histologic examination of biopsies taken from the center of the wound beds showed that CEA-treated wounds significantly accelerated the rate of re-epithelialization ( 7.8 + / - 0.6 days vs. 9.2 + / - 0.9 days for CEA - and control-treated wounds , respectively ; p = 0.039 ) and epithelial differentiation ( p = 0.023 ) compared with control sites .
