Figure 3From: Platelet-rich plasma preparation for regenerative medicine: optimization and quantification of cytokines and growth factorsIndividual and daily variation of a platelet-rich plasma preparation at 18°C. (A) PRP2 platelet recovery and (B) PRP2 platelet yield. Samples belong to different donors and the procedure was performed by different researchers on different days. PRP2, platelet-rich plasma volume after the second blood centrifugation step.Back to article page