Protti, Giorgia, Fabrizio Elia, Francesca Bosco, and Franco Aprà. “An Eminent Absence: Agenesis of Inferior Vena Cava Underlying Bilateral Iliac Vein Thrombosis”. European Journal of Case Reports in Internal Medicine 7, no. 12 (October 22, 2020). Accessed November 3, 2026. https://ejcrim.com/index.php/ejcrim/article/view/1999.