PRP	Platelet-Rich-Plasma
EC	European Parliament
CAT	Committe for Advanced treatments
GMP	Good Manufacturing Practices
GCP	Good Clinical Practices
SPSS	Statistical Package for the Social Sciences
CD	Cluster of differentiation
NaCl	Saline solution
MW	Molecular weight
PCR-	Negative control
HCs	Human Condrocytes
SD	Standard Deviation