Fig. 6From: Analysis of pain markers and epidural fibrosis caused by repeated spinal surgery in Sprague–Dawley ratsImmunohistochemical analysis of phosphorylated MAPK markers in the spinal dorsal horn. a images of immunohistochemical analysis of p-ERK, p-p38 and p-JNK and b quantitative assessment of the positive stain ratio (%) (* p < 0.05, ** p < 0.01; circle: spinal dorsal horn)Back to article page