TY - JOUR T1 - The circle of Willis. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1033 LP - 1034 VL - 18 IS - 6 AU - S M Wolpert Y1 - 1997/06/01 UR - http://www.ajnr.org/content/18/6/1033.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -