1. Veterinary Diagnostic Laboratory, Michigan State University, East Lansing, MI, USA
2. Comparative Biomedical Sciences, School of Veterinary Medicine, Louisianna State University, Baton Rouge, LA, USA
3. Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, USA
4. Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA