1. Department of Clinical Studies, Section of Small Animal Surgery, Cornell University College of Veterinary Medicine, Ithaca, NY, USA
2. Department of Biomedical Sciences, Section of Anatomic Pathology, Cornell University College of Veterinary Medicine, Ithaca, NY, USA
3. Department of Clinical Studies, Ontario Veterinary College, Small Animal Surgery, Guelph University, Guelph, ON, Canada