PT - JOURNAL ARTICLE AU - Cloft, H.J. TI - Warning: Side Effects May Include a Decrease in Invasive Procedures AID - 10.3174/ajnr.A2927 DP - 2011 Dec 01 TA - American Journal of Neuroradiology PG - 1976--1977 VI - 32 IP - 11 4099 - http://www.ajnr.org/content/32/11/1976.short 4100 - http://www.ajnr.org/content/32/11/1976.full SO - Am. J. Neuroradiol.2011 Dec 01; 32