RT Journal Article SR Electronic T1 Reply JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 235 OP 235 VO 21 IS 1 A1 Joseph Maytal A1 Richard B. Libman YR 2000 UL http://www.ajnr.org/content/21/1/235.abstract AB