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Immunofluorescence staining results of wound regeneration site on 3rd day and 7th day with (a) CD68 and on 7th day and 14th day with (d) CD31. Red arrows indicate the expression of CD68, and yellow arrows indicate CD31, scale bar: 50 μm; Quantitative results of (b) CD68 and (c) CD31 relative area ratio (n = 3). For all quantitative data, the data of the commercial film groups on the 3rd day of CD68 and the 7th day of CD31 were taken as 100%. *P < 0.05, **P < 0.01.
