RT Journal Article SR Electronic JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 423 OP 423 DO 10.3174/ajnr.P0032 VO 38 IS 3 A1 Ayala, Saiz YR 2017 UL http://www.ajnr.org/content/38/3/423.abstract AB