TY - JOUR T1 - Erratum JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 742 LP - 742 VL - 23 IS - 4 A2 - , Y1 - 2002/04/01 UR - http://www.ajnr.org/content/23/4/742.1.abstract N2 - ER -