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Expression of the proangiogenic growth factors (A) PDGF-A, (B) PDGFR-A, (C) VEGF-A and (D) TGF-β. in fat grafts, as determined by reverse transcription-quantitative polymerase chain reaction. Each sample was tested in triplicate (n=3/group). EVs, extracellular vesicles; PDGF-A, platelet-derived growth factor α; PDGFR-A, platelet-derived growth factor receptor α; VEGF-A, vascular endothelial growth factor A; TGF-β, transforming growth factor β. *P<0.05.
