RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E56 OP E56 DO 10.3174/ajnr.A2116 VO 31 IS 6 A1 Zuccoli, G. YR 2010 UL http://www.ajnr.org/content/31/6/E56.abstract AB