TY - JOUR T1 - Erratum JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 406 LP - 406 VL - 10 IS - 2 A2 - , Y1 - 1989/03/01 UR - http://www.ajnr.org/content/10/2/406.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -