Bavera, Pietro Maria. “Chronic Cerebrospinal Venous Insufficiency, Ten Years After. New Headlights on a Venous Disease That Enriched the Vascular World”. Veins and Lymphatics 9, no. 1 (June 1, 2020). Accessed September 25, 2021. https://pagepressjournals.org/index.php/vl/article/view/9053.