TY - JOUR T1 - Erratum JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1022 LP - 1022 VL - 12 IS - 5 A2 - , Y1 - 1991/09/01 UR - http://www.ajnr.org/content/12/5/1022.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -