RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 5 OP 5 DO 10.3174/ajnr.A0760 VO 29 IS 1 A1 Castillo, Mauricio A1 Cloft, Harry J. YR 2008 UL http://www.ajnr.org/content/29/1/5.1.abstract AB