Fig. 3From: Platelet-rich plasma (PRP) accelerates murine patellar tendon healing through enhancement of angiogenesis and collagen synthesisGrowth factor concentrations in PRP and PPP. a Platelet-derived growth factor-AB (PDGF-AB), b vascular endothelial growth factor (VEGF), and (c) transforming growth factor-beta 1 (TGF-β1) concentrations of PRP and PPP (n = 4). Data are presented as mean ± SD (**p < 0.01)Back to article page