“A Rare Congenital Anomaly: Surgery of Combined Discrete Subaortic Membrane Complicated by the Absence of the Superior Vena Cava ”. Annals of Medical Research 21, no. 2 (May 25, 2021): 0139–0141. Accessed May 12, 2026. http://www.annalsmedres.org/index.php/aomr/article/view/1988.