RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E73 OP E73 DO 10.3174/ajnr.A4910 VO 37 IS 11 A1 Bracco, S. A1 Bertelli, E. YR 2016 UL http://www.ajnr.org/content/37/11/E73.abstract AB