Four SNPs (rs8193036, rs3819024, rs2275913 and rs8193037) in gene IL-17A were genotyped in 900 premature CAD patients and 935 health persons (Vargas-Alarcon et al., 2015) performed haplotype-based association analysis of premature CAD using individual and common haplotype pairs (called individual-common haplotype pairs). Here, IL17A is linked to coronary artery disorder.