Hong T, Park JE, Ling F, terBrugge KG, Tymianski M, Zhang HQ, Krings T. Comparison of 3 Different Types of Spinal Arteriovenous Shunts below the Conus in Clinical Presentation, Radiologic Findings, and Outcomes. AJNR Am J Neuroradiol. 2017 Feb; 38(2):403-409.