Al-Umairi, R. S., F. A. Al-Kindi, and S. A. Al-Tai. “A New Variant of Dual Left Anterior Descending Artery Anomaly: Type XI”. Sultan Qaboos University Medical Journal, vol. 18, no. 3, Dec. 2018, pp. e386-388, doi:10.18295/squmj.2018.18.03.021.