POCD	Postoperative Cognitive Dysfunction
RT-PCR	Real-Time Polymerase Chain Reaction
CABG	Coronary Artery Bypass Graft
RNA	Ribonucleic Acid
MMSE	Mini–Mental State Examination
TMT	Trail Making Test
DSST	Digit Symbol Substitution Test
CDT	Clock Drawing Test
ERFE	Erythroferrone
KIR	Killer Immunoglobulin-like Receptor
NK	Natural Killer
PD	Parkinson’s Disease