RT Journal Article SR Electronic T1 Reply JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1771 OP 1773 VO 21 IS 9 A1 Todd Abruzzo A1 Harry J. Cloft A1 George G. Shengelaia YR 2000 UL http://www.ajnr.org/content/21/9/1771.abstract AB