Moses, Jane, Charles Kyriakakis, Hellmuth Weich, Pieter Rossouw, Philip Herbst, and Anton Doubell. “Persistant Left Superior Vena Cava – the Value of an Agitated Saline Contrast Study”. SA Heart Journal 11, no. 3 (March 28, 2017): 152–153. Accessed October 8, 2025. https://www.journals.ac.za/SAHJ/article/view/1753.