RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E37 OP E37 DO 10.3174/ajnr.A5146 VO 38 IS 5 A1 Yuan, J. A1 Graves, M. YR 2017 UL http://www.ajnr.org/content/38/5/E37.abstract AB