RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E45 OP E45 DO 10.3174/ajnr.A7126 VO 42 IS 7 A1 Shlapak, D. A1 Kim, D.K. A1 Diehn, F.E. A1 Benson, J.C. A1 Lehman, V.T. A1 Liebo, G.B. A1 Morris, J.M. A1 Morris, P.P. A1 Verdoom, J.T. A1 Carr, C.M. YR 2021 UL http://www.ajnr.org/content/42/7/E45.abstract AB