Cicek, Davran, Seher Gokay, Halil Olcay Eldem, and Haldun Muderrisoglu. “Significant Stenoses of Twin Circumflex Arteries Accompanied by Heart Failure: A Rare Coronary Artery Anomaly”. Clinics and Practice 1, no. 2 (April 19, 2011): e22. Accessed October 27, 2020. https://www.clinicsandpractice.org/index.php/cp/article/view/cp.2011.e22.