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Figure 6: BMSC + NPWT accelerate the formation of mature vessel. (a) Immunofluorescence staining for CD31 and a-SMA. Red and green costaining represented mature blood vessels. Nuclei were stained with DAPI (blue). (b) Quantification of mature blood vessels. (c) Granulation tissue score and wound maturity score. (d) Concentration of TGF-β1 within wounds among different groups. Data is given as the mean ± SD, , .