| Affiliation: | 1. Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, , College Station, TX;2. Department of Production Animal Studies, University of Pretoria, , Onderstepoort, South Africa;3. Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Iowa State University, , Ames, IA;4. Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, , College Station, TX;5. Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Washington State University, , Pullman, WA |
