RT Journal Article SR Electronic T1 Perspectives JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1417 OP 1418 DO 10.3174/ajnr.A2929 VO 33 IS 8 A1 M. Castillo YR 2012 UL http://www.ajnr.org/content/33/8/1417.abstract AB