ADP	Adenosine Diphosphate
AR	Adenosine Receptor
cAMP	Cyclic Adenosine Monophosphate
CHO	Chinese Hamster Ovary Cells
EC50	Half Maximal Effective Concentration
IC50	Half Maximal Inhibitory Concentration
KO	Knock-Out
FDA	Food and Drug Administration
HE-NECA	2-Hexynyl-5′-(N-ethylcarboxamido)adenosine
IUPAC	International Union of Pure and Applied Chemistry
NECA	5′-(N-ethylcarboxamido)adenosine
PRP	Platelet-Rich Plasma