PT - JOURNAL ARTICLE ED - , TI - Erratum AID - 10.3174/ajnr.A1343 DP - 2008 Oct 08 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2008/10/08/ajnr.A1343.short 4100 - http://www.ajnr.org/content/early/2008/10/08/ajnr.A1343.full