CDKN2B and coronary atherosclerosis measurement: An analysis of the genotype distribution in the entire group of symptomatic and non-symptomatic patients, as compared with the control group, showed significant differences for the following polymorphisms: rs3798220 (LPA gene), rs4977574, and rs7857345 (CDKN2B-AS1 gene), just like the comparison between non-symptomatic patients and the control group, which indicates an association of these polymorphisms with carotid artery stenosis.