RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E106 OP E106 DO 10.3174/ajnr.A5778 VO 39 IS 10 A1 Tawfik, A.M. A1 Sobh, D.M. A1 Batouty, N.M. YR 2018 UL http://www.ajnr.org/content/39/10/E106.abstract AB