RT Journal Article SR Electronic T1 Sven-Ivar Seldinger JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1180 OP 1181 VO 20 IS 6 A1 Greitz, Torgny YR 1999 UL http://www.ajnr.org/content/20/6/1180.abstract AB