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Histological alterations after micrograft. The representative pictures of granulation tissue marked by yellow lines are shown on Days 6 and 13 in the control and MG groups. Different connective tissue stains (MT and PSR) and immunohistological stains (CD31, αSMA and TGF-β1) were performed on serial sections. Scale bar = 100 μm. Inserted graphs are the semi-quantitative evaluation of CD31, αSMA and TGF-β1 in each group.
