highly significantp < 0.001
These values showed a highly significant difference in epidermal thickness (Kruskal-Wallis test, χ 2 = 78.944, df = 4, p < 0.001; Fig. 4 A).
These values showed a highly significant difference in epidermal thickness (Kruskal-Wallis test, χ 2 = 78.944, df = 4, p < 0.001; Fig. 4 A).