RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP e84 OP e84 DO 10.3174/ajnr.A1584 VO 30 IS 6 A1 Gasparetto, Prof. E.L. A1 Nirenberg, F. A1 de Souza, Prof. J. Marcondes YR 2009 UL http://www.ajnr.org/content/30/6/e84.abstract AB