RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E22 OP E24 DO 10.3174/ajnr.A4707 VO 37 IS 3 A1 Spinazzi, A. A1 Pirovano, G. A1 Shen, N. A1 Kirchin, M.A. YR 2016 UL http://www.ajnr.org/content/37/3/E22.abstract AB