RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1206 OP 1206 DO 10.3174/ajnr.A0615 VO 28 IS 7 A1 A.G. Chacko A1 R.T. Daniel A1 G. Chacko A1 N.R.S. Surendrababu YR 2007 UL http://www.ajnr.org/content/28/7/1206.2.abstract AB