Rebhun Robert B, Greenberg Marc J, Silver Tawni I
Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA.
J Am Vet Med Assoc. 2008 Dec 1;233(11):1691-2. doi: 10.2460/javma.233.11.1691.