They genotyped the rs8259T>A, rs28915400G>T, rs4919859G>C, rs6758G>A, and rs8637G>A CD147 variants and rs3918242C>T MMP-9 variant in 812 patients and 258 controls and found associations between rs8259T>A and rs3918242C>T variants and CAD, suggesting their involvement in the pathological process of the disease [21]. Here, MMP9 is linked to coronary artery disorder.