RT Journal Article SR Electronic T1 Spinal dural arteriovenous fistula: the role of PVA embolization. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 941 OP 942 VO 13 IS 3 A1 Choi, I S YR 1992 UL http://www.ajnr.org/content/13/3/941.abstract AB