1. MedVet Medical and Cancer Center for Pets Worthington Ohio
2. Ontario Veterinary CollegeUniversity of Guelph Guelph Ontario Canada
3. Department of Clinical Sciences of Companion Animals, Faculty of Veterinary MedicineUtrecht University Utrecht The Netherlands
4. Department of Clinical Studies, Ontario Veterinary CollegeUniversity of Guelph Guelph Ontario Canada
5. Department of StatisticsThe Ohio State University Columbus Ohio