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. 2014 Mar 3;9(3):e90858. doi: 10.1371/journal.pone.0090858

Figure 7. Immunohistochemical staining of collagen type II and the percentage of positive collagen type II in all groups (A: SED group; B: 2W group; C: 4W group; D: 8W group).

Figure 7

# P<0.05 compared to SED, 2W and 8W group; * P<0.05 compared to 2W group. (scale bar  =  100 µm). R: repair tissue. →: defect margin.