Long-Term Outcome in the Repair of Spinal Cord Perimedullary Arteriovenous Fistulas - Antonietti, L.; Sheth, S.A.; Halbach, V.V.; Higashida, R.T.; Dowd, C.F.; Lawton, M.T.; English, J.D.; Hetts, S.W. (American Journal of Neuroradiology, 2010)