Fig. 3From: Plasma rich in growth factors (PRGF) and leukocyte-platelet rich fibrin (L-PRF): comparative release of growth factors and biological effect on osteoblastsCumulative release percentage. A Insulin-like growth factor (IGF-I). B Platelet-derived growth factor (PDGF-AB). C Endothelial growth factor (VEGF). D Interleukin-1β (IL-1 β)Back to article page