PT - JOURNAL ARTICLE ED - , TI - Joel Swarz DP - 2002 Mar 01 TA - American Journal of Neuroradiology PG - 502--502 VI - 23 IP - 3 4099 - http://www.ajnr.org/content/23/3/502.short 4100 - http://www.ajnr.org/content/23/3/502.full SO - Am. J. Neuroradiol.2002 Mar 01; 23