RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E98 OP E100 DO 10.3174/ajnr.A2560 VO 32 IS 5 A1 C.M. Putman A1 P. Lylyk A1 J. Cebral YR 2011 UL http://www.ajnr.org/content/32/5/E98.abstract AB