RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E56 OP E56 DO 10.3174/ajnr.A5575 VO 39 IS 5 A1 A.W. Korutz A1 T.A. Hijaz A1 J.D. Collins A1 A.J. Nemeth YR 2018 UL http://www.ajnr.org/content/39/5/E56.abstract AB