RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP e70 OP e70 DO 10.3174/ajnr.A1491 VO 30 IS 5 A1 J.M. Isokangas A1 T. Siniluoto A1 T. Kumpulainen A1 T. Tikkakoski YR 2009 UL http://www.ajnr.org/content/30/5/e70.abstract AB