Johnson Laurel M, Hecht Silke, Arendse Avril U, Adams William H
Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA.
J Am Vet Med Assoc. 2007 Sep 15;231(6):861-2. doi: 10.2460/javma.231.6.861.