1. Veterinary Medical Teaching HospitalUniversity of California Davis Davis California
2. Department of Medicine and Epidemiology, School of Veterinary MedicineUniversity of California Davis California
3. Department of Pathology, Microbiology, and Immunology, School of Veterinary MedicineUniversity of California Davis California
4. Department of Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State University Baton Rouge Louisiana