RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E43 OP E43 DO 10.3174/ajnr.A3042 VO 33 IS 3 A1 Symons, S.P. A1 Lian, K. A1 Bharatha, A. A1 Aviv, R.I. YR 2012 UL http://www.ajnr.org/content/33/3/E43.abstract AB