The authors utilized the polymerase chain reaction to rapidly and accurately type a variable number of tandemly repeated loci (VNTR loci) of the 3’ flanking region of apolipoprotein B (apo B) gene, and studied the relationship between this loci polymorphisms and coronary heart disease (CAD); comparisons were made with relative diseases and The authors utilizes the polymerase chain reaction to rapidly and accurately type a variable number of tandemly repeated loci (VNTR loci) of the 3 ’flanking region of apolipoprotein B (apo B) gene, and studied the relationship between this loci polymorphisms and coronary heart disease (CAD); comparisons were made with relative diseases and