1. Department of Veterinary Pathobiology, Texas A&M University, School of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA
2. Department of Small Animal Clinical Sciences, Texas A&M University, School of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA
3. Department of Pathobiology, University of Pennsylvania, Ryan Veterinary Hospital, Philadelphia, PA, USA
4. Veterinary Referral Center (VRC), Malvern, PA, USA