Byun JS, Tsang ACO, Hilditch CA, Nicholson P, Fang YB, Krings T, Pereira VM, Lanzino G, Brinjikji W. Presentation and outcomes of patients with thoracic and lumbosacral spinal epidural arteriovenous fistulas: a systematic review and meta-analysis. J Neurointerv Surg. 2019 Jan; 11(1):95-98.