PT - JOURNAL ARTICLE AU - W.J. van Rooij AU - M. van Eijck AU - R. Bechan AU - G. Roks TI - Reply: AID - 10.3174/ajnr.A4711 DP - 2016 Jan 28 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2016/01/28/ajnr.A4711.short 4100 - http://www.ajnr.org/content/early/2016/01/28/ajnr.A4711.full