PT - JOURNAL ARTICLE AU - C.M. Putman AU - P. Lylyk AU - J. Cebral TI - <em>Reply:</em> AID - 10.3174/ajnr.A2560 DP - 2011 May 01 TA - American Journal of Neuroradiology PG - E98--E100 VI - 32 IP - 5 4099 - http://www.ajnr.org/content/32/5/E98.short 4100 - http://www.ajnr.org/content/32/5/E98.full SO - Am. J. Neuroradiol.2011 May 01; 32