PT - JOURNAL ARTICLE ED - , DP - 2004 Mar 01 TA - American Journal of Neuroradiology PG - 518--518-a VI - 25 IP - 3 4099 - http://www.ajnr.org/content/25/3/518.1.short 4100 - http://www.ajnr.org/content/25/3/518.1.full SO - Am. J. Neuroradiol.2004 Mar 01; 25