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Effect of UPH and the recombinant human epidermal growth factor gel (yeast) (rhEGF) on wound healing in C57BL/6 mice. (a) Representative images of the healing process in different groups of mice; (b) the degree of wound closure expressed by the percentage of the wound residual area. n = 4/group; * p < 0.05 vs. gauze; ** p < 0.01 vs. gauze.
