PT - JOURNAL ARTICLE ED - , TI - Erratum AID - 10.3174/ajnr.A3131 DP - 2012 May 01 TA - American Journal of Neuroradiology PG - E81--E81 VI - 33 IP - 5 4099 - http://www.ajnr.org/content/33/5/E81.short 4100 - http://www.ajnr.org/content/33/5/E81.full SO - Am. J. Neuroradiol.2012 May 01; 33