Figure 3. Specificity of K12, K13, and K19 expression in human cornea. A: Percentage of K12⁺, K13⁺ and K12⁺/K13⁺ cells in the central (left) and peripheral cornea (middle). The average percentages of the three cell populations are obtained (right). B: Percentage of K12⁺, K19⁺ and K12⁺/K19⁺ cells in the central (left) and peripheral cornea (middle). The average percentages of the three cell populations are obtained (right). The asterisk indicates a p<0.05 between K12⁺ and K19⁺ or K13⁺ cells, the double asterisk indicates a p<0.05 between K12⁺ and K12⁺/19⁺ or K12⁺/K13⁺ cells.