Bavera, Pietro Maria. “Multiple Sclerosis and Venous Angioplasty for Chronic Cerebrospinal Venous Insufficiency: A Case Control Study With Ten Years Follow-up With Patients at Their Own Control”. Veins and Lymphatics 10, no. 1 (December 21, 2021). Accessed May 1, 2024. https://www.pagepressjournals.org/vl/article/view/vl.2021.10143.