Figure 3. In vivo assay of BrdU incorporation during corneal epithelial wound healing. BrdU-positive corneal epithelial cells were counted in sections of WBB6F1^+/+ and c-kit mutant corneas. Although the number of BrdU incorporated cells gradually increased after the injury, there were no significant differences between WBB6F1^+/+ and c-kit mutant mice at each time point (unpaired t tests). +/+=WBB6F1^+/+ mice, W/W^v=c-kit mutant mice. Error bars represent the standard errors (n=6).