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. 2021 Dec 10;7(50):eabj7857. doi: 10.1126/sciadv.abj7857

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Fig. 7. — (A, a to d) Immunohistochemistry staining of iNOS for macrophages. (A, e to h) Immunohistochemistry staining of CD206 for macrophages at the defect site. (A, i to l) Immunohistochemistry staining of CD44 for BMSCs. The red arrows indicate positively stained cells. Images of (A) (a to l) exhibit the same scale bar of 25 μm. (B to D) Quantitative analysis of positive stained area of inducible nitric oxide synthase (iNOS) (B), CD206 (C), and CD44 (D) for four groups. * indicates statistically significant difference (P < 0.05) between groups. **P < 0.01, ***P < 0.001.