ACR	American College of Rheumatology
ANOVA	Analysis of Variance
ASA	Acetylsalicylic Acid
BMI	Body Mass Index
DMARD	Disease-Modifying Anti-Rheumatic Drug
DMOAD	Disease-Modifying Osteoarthritis Drug
EDTA	Ethylenediaminetetraacetic Acid
ELISA	Enzyme-Linked Immunosorbent Assay
HGF	Hepatocyte Growth Factor
IGF	Insulin-like Growth Factor
IL	Interleukin
IQR	Interquartile Range
LP-PRP	Leukocyte-Poor Platelet-Rich Plasma
LR-PRP	Leukocyte-Rich Platelet-Rich Plasma
mL	milliliter
MMP	Matrix Metalloproteinase
nL	nanoliter
NSAID	Non-Steroidal Anti-Inflammatory Drug
OA	Osteoarthritis
OARSI	Osteoarthritis Research Society International
PDGF	Platelet-Derived Growth Factor
pg	picogram
PRP	Platelet-Rich Plasma
SD	Standard Deviation
SPSS	Statistical Package for the Social Sciences
WHO	World Health Organization