TY - JOUR T1 - <em>Reply:</em> JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - E92 LP - E92 DO - 10.3174/ajnr.A2512 VL - 32 IS - 5 AU - O. Naggara AU - J.-F. Meder AU - C. Oppenheim Y1 - 2011/05/01 UR - http://www.ajnr.org/content/32/5/E92.abstract N2 - ER -