Allender M C, Schumacher J, Milam J, George R, Cox S, Martín-Jiménez T
Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA.
J Vet Pharmacol Ther. 2008 Feb;31(1):83-6. doi: 10.1111/j.1365-2885.2007.00924.x.