PT - JOURNAL ARTICLE ED - , TI - Neuroradiology Third Series, Test and Syllabus, Vol. 51 AID - 10.3174/ajnr.A0836 DP - 2007 Nov 07 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2007/11/07/ajnr.A0836.short 4100 - http://www.ajnr.org/content/early/2007/11/07/ajnr.A0836.full