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Histological evaluation in the area of complete wound healing (A = 100%), magnification ×100, and scale bar: 100 μm. (A) native skin; (B) group 4, day 40 (control group); (C) group 1, day 23 (SF-F); (D) group 2, day 23 (SF-MS); (E) group 3, day 23 (SFG-MS).
