PT - JOURNAL ARTICLE AU - W.J. van Rooij AU - M. Sluzewski TI - Reply AID - 10.3174/ajnr.A1772 DP - 2009 Jul 23 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2009/07/23/ajnr.A1772.short 4100 - http://www.ajnr.org/content/early/2009/07/23/ajnr.A1772.full