Fig. 3

In-vivo wound healing effect of electrode placement in ES. (a) Representative images of wounds on the dorsal of rat treated by ES of different electrode placements. (b) Quantification of wound area ratios within 17 days, control (gray), group 1(black), group 2 (red), group 3 (blue). *p < 0.05 between the control group and group 3, #p < 0.05 between group 1 and group 3, §p < 0.05 between group 2 and group 3 by Kruskal Wallis test. (c) Wound tracing analysis at different time points in different groups.