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Analysis of the fibrosis area and crown-like structures (CLS) after MSC and sEV therapy using the rapid fibrosis mouse model (a and c) Quantitation of the Sirius Red-stained area and (b and d) the F4/80-positive CLS were performed in each MSC and sEV therapy group (n = 8 per group) (※ p < 0.05, ※※ p < 0.01, one-way ANOVA, Bonferroni test). Scale bar, 100 μm.
