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In vivo wound healing evaluation of Gel, NAC-Gel, GO-Gel, and NAC-GO-Gel scaffolds. (A) Photographic evaluation of wound repair in four groups on day 0, 3, 7, 10, and 14; (B) closure area (%) of the wound defect. NAC-GO-Gel group achieved the best effect among four groups on day 7, 10, and 14 (mean ± SD, ***P < 0.001, **P<0.01, *P<0.05).
