RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP e9 OP e10 DO 10.3174/ajnr.A1372 VO 30 IS 1 A1 van Rooij, W.J. A1 Sluzewski, M. YR 2009 UL http://www.ajnr.org/content/30/1/e9.abstract AB