Fig. 2

a Masson’s Trichrome staining evaluating scar density. Kruskal-Wallis test p = 0.0031; **p < 0.01. b Masson’s Trichrome staining evaluating dura mater adhesion. Kruskal-Wallis test p = 0.0586. c H&E staining evaluating inflammatory infiltrate. Kurskal-Wallis test p = 0.0068; *p < 0.05; **p < 0.01