1. Division of Diagnostic Imaging, Faculty of Veterinary MedicineUtrecht University Utrecht The Netherlands
2. Department of Pathobiology, Faculty of Veterinary MedicineUtrecht University Utrecht The Netherlands
3. Department of Equine Sciences, Faculty of Veterinary MedicineUtrecht University Utrecht The Netherlands
4. Department of Surgery and Anaesthesiology of Domestic Animals, Faculty of Veterinary MedicineGhent University Merelbeke Belgium
5. Department of Farm Animal Health, Faculty of Veterinary MedicineUtrecht UniversityUtrecht The Netherlands