RT Journal Article SR Electronic T1 PEDIATRIC NEURORADIOLOGY JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 29 OP 36 VO 21 IS 1 A1 William S. Ball Jr YR 2000 UL http://www.ajnr.org/content/21/1/29.abstract AB