Sanger H, et al. Neuropharmacology. 2013 Mar;66:264-73
Hackler EA, et al. Neuroscience. 2010 Jun 16;168(1):209-18
Hemstapat K, et al. J Pharmacol Exp Ther. 2007 Jul;322(1):254-64
Benneyworth MA, et al. Mol Pharmacol. 2007 Aug;72(2):477-84
Galici R, et al. J Pharmacol Exp Ther. 2006 Jul;318(1):173-85