RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E132 OP E132 DO 10.3174/ajnr.A1772 VO 30 IS 9 A1 van Rooij, W.J. A1 Sluzewski, M. YR 2009 UL http://www.ajnr.org/content/30/9/E132.abstract AB