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 Isokangas, J.M. A1 Siniluoto, T. A1 Kumpulainen, T. A1 Tikkakoski, T. YR 2009 UL http://www.ajnr.org/content/30/5/e70.abstract AB