1. Department of Veterinary Clinical Sciences, College of Veterinary Medicine The Ohio State University Columbus Ohio USA
2. Department of Veterinary Biosciences, College of Veterinary Medicine The Ohio State University Columbus Ohio USA
3. Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences Texas A&M University College Station Texas USA
4. Department of Clinical Sciences, College of Veterinary Medicine Kansas State University Manhattan Kansas USA
5. Department of Clinical Sciences, School of Veterinary Medicine University of Wisconsin Madison Wisconsin USA
6. Department of Clinical Studies, Ontario Veterinary College University of Guelph Guelph Ontario Canada