RT Journal Article SR Electronic JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 199 OP 199 DO 10.3174/ajnr.P0012 VO 37 IS 2 A1 Vargas, Maria Isabel YR 2016 UL http://www.ajnr.org/content/37/2/199.abstract AB