Pedersen Niels C
Department of Medicine and Epidemiology and Center for Companion Animal Health, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
J Feline Med Surg. 2009 Apr;11(4):225-58. doi: 10.1016/j.jfms.2008.09.008. Epub 2009 Feb 28.