Good D A, Heatley J J, Tully T N, Smith J A
Department of Veterinary Clincal Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803, USA.
J Am Vet Med Assoc. 2001 Dec 1;219(11):1529-31. doi: 10.2460/javma.2001.219.1529.