PT - JOURNAL ARTICLE AU - H. Cloft TI - Interventional Standards AID - 10.3174/ajnr.A1952 DP - 2009 Nov 19 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2009/11/19/ajnr.A1952.short 4100 - http://www.ajnr.org/content/early/2009/11/19/ajnr.A1952.full