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Histological assessment demonstrated that ASCs significantly improved the granulation rate. (A) The dermis of normal skin served as a comparison. After three weeks of ASC treatment, the healed skin of each group was assessed. The images are representative of the control (B) and ASC-treated (C) groups. Bar: 200 μm. (D) The thickness of the dermis was evaluated. The data represent the mean ± SEM of eight rats. *p < 0.05; **p < 0.001.
