RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E15 OP E15 DO 10.3174/ajnr.A2946 VO 33 IS 1 A1 Marquering, H.A. A1 Majoie, C.B. A1 Nederkoorn, P.J YR 2012 UL http://www.ajnr.org/content/33/1/E15.abstract AB