PT - JOURNAL ARTICLE ED - American Society of Neuroradiology DP - 2002 May 01 TA - American Journal of Neuroradiology PG - 889--889 VI - 23 IP - 5 4099 - http://www.ajnr.org/content/23/5/889.short 4100 - http://www.ajnr.org/content/23/5/889.full SO - Am. J. Neuroradiol.2002 May 01; 23