PT - JOURNAL ARTICLE AU - Harry J. Cloft TI - Have You Been Smoking Something That Is Biologically Active? DP - 2006 Feb 01 TA - American Journal of Neuroradiology PG - 240--242 VI - 27 IP - 2 4099 - http://www.ajnr.org/content/27/2/240.short 4100 - http://www.ajnr.org/content/27/2/240.full SO - Am. J. Neuroradiol.2006 Feb 01; 27