TY - JOUR T1 - Ultrasound: A Practical Approach to Clinical Problems, 2nd ed. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. DO - 10.3174/ajnr.A0874 A2 - , Y1 - 2007/11/16 UR - http://www.ajnr.org/content/early/2007/11/16/ajnr.A0874.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -