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In vivo angiogenesis evaluation with the immunohistochemical staining (IHC) of alpha-smooth muscle actin (α-SMA). (A) Representative light microscopy images at regenerated wounds (Scale bar = 100 μm). (B) The number of newly formed vessels in the high-power field (HPF) magnification images (n = 10–15) (*compared with the PBS group; #compared with the SF group; *,#p < 0.05; ***p < 0.001).
