1. Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK
2. Oklahoma Animal Disease Diagnostic Laboratory, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK
3. Pet Hospital of Peñasquitos, San Diego, CA
4. Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY
5. VCA West Los Angeles Animal Hospital, Los Angeles, CA