RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E46 OP E46 DO 10.3174/ajnr.A3546 VO 34 IS 4 A1 Miller, T. A1 Brook, A. YR 2013 UL http://www.ajnr.org/content/34/4/E46.abstract AB