Abd El-Aziz et al. [15] concluded that the ApoB X + allele increased the risk of CHD by affecting the levels of TC and LDL-c by studying the polymorphisms of various apolipoprotein B genes in the Egyptian population; Ma Juan et al. [16] conducted a case-control study of Chinese people suggesting that ApoB Xbal gene polymorphism is a genetic risk factor for CHD, and that allele X+ is an important genetic marker for CHD. The gene discussed is APOB; the disease is coronary artery disorder.