Cicek, D., S. Gokay, H. O. Eldem, and H. Muderrisoglu. “Significant Stenoses of Twin Circumflex Arteries Accompanied by Heart Failure: A Rare Coronary Artery Anomaly”. Clinics and Practice, Vol. 1, no. 2, Apr. 2011, p. e22, doi:10.4081/cp.2011.e22.