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.A4327 VO 36 IS 5 A1 Wittschieber, D. A1 Karger, B. A1 Niederstadt, T. A1 Pfeiffer, H. A1 Hahnemann, M.L. YR 2015 UL http://www.ajnr.org/content/36/5/E37.abstract AB