Fig. 6
Histological evaluation of repaired cartilage. A–L Representative H&E and toluidine blue staining of repaired cartilage at 8 and 12 weeks. Scale bar: 100 μm. M, N ICRS Visual Histological Assessment Scale for repaired cartilage at 8 (M) and 12 (N) weeks. Data are presented as mean ± SD (n = 6; *P < 0.05, **P < 0.01, ***P < 0.001)