RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A2176 A1 A.K. Bag A1 J.K. Cure A1 P.R. Chapman A1 G.H. Roberson A1 R. Shah YR 2010 UL http://www.ajnr.org/content/early/2010/06/10/ajnr.A2176.abstract AB