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Hematoxylin and eosin staining of sections from each group after 10 days. a) The overall structure of the skin tissue. b) Epithelial regeneration in the wound indicated by black arrows. c) Remodeling at the wound margin indicated by red arrows, and hair follicle indicated by blue arrows. d) Collagen deposition in the wound tissue. The scale bars are 500 μm in a, 50 μm in b, c and d.
