Saka, M. H., and M. A. Barzani. “Assessment of Some Risk Factors for Angiographically Defined Coronary Artery Disease in the Erbil Cardiac Center”. Zanco Journal of Medical Sciences (Zanco J Med Sci), vol. 19, no. 2, Aug. 2015, pp. 949-56, doi:10.15218/zjms.2015.0016.