RT Journal Article SR Electronic T1 Apples JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A3162 A1 M. Castillo YR 2012 UL http://www.ajnr.org/content/early/2012/05/31/ajnr.A3162.abstract AB