RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP e58 OP e58 DO 10.3174/ajnr.A1076 VO 29 IS 7 A1 Tschampa, H. YR 2008 UL http://www.ajnr.org/content/29/7/e58.abstract AB