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  Indian J Med Microbiol
 

Figure 8: Three separate layers were formed after centrifugation of patients' blood: top arrow shows platelet poor plasma (PPP) centerone is platelet-rich fibrin (PRF) and bottom arrow shows red blood cells (RBC's)

Figure 8: Three separate layers were formed after centrifugation of patients' blood: top arrow shows platelet poor plasma (PPP) centerone is platelet-rich fibrin (PRF) and bottom arrow shows red blood cells (RBC's)