| Affiliation: | 1. William R. Pritchard Veterinary Medical Teaching Hospital, University of California School of Veterinary Medicine, Davis, California, USA;2. Department of Medicine and Epidemiology, University of California School of Veterinary Medicine, Davis, California, USA;3. Department of Surgical and Radiological Sciences, University of California School of Veterinary Medicine, Davis, California, USA;4. Department of Pathology, Microbiology and Immunology, University of California School of Veterinary Medicine, Davis, California, USA |
