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Ropivacaine treatment inhibited wound healing in mice. A Representative photographs showing ropivacaine treatment delayed the wound healing in the injured mouse model; B Quantification of the wound area gradually decreased at different time points; C Representative images (scale bar = 200 μm) and D quantification of epidermal thickness from hematoxylin and eosin-stained sections of the wound sites. Error bars represent the mean ± S.D.; *P < 0.05, **P < 0.01 vs. control
