RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP e68 OP e68 DO 10.3174/ajnr.A1490 VO 30 IS 5 A1 M. Jayaraman A1 H.J. Cloft YR 2009 UL http://www.ajnr.org/content/30/5/e68.abstract AB