CYP1A1 and coronary artery disorder: Since reported results are conflicting [7, 21-23] and no studies have been conducted in Iran regarding the correlation of T6235C polymorphism of CYP1A1 gene with CAD, investigation of this polymorphism in Iranian patients with CAD seems necessary and may elucidate the pathological process of CAD and reduces the side effects of non-specific therapies.