1. Division of Clinical Veterinary Radiology; University of Bern; Länggass-Strasse 122-128, Postfach 3001 Berne Switzerland
2. Clinic of Equine Medicine and Surgery; University of Bern; Länggass-Strasse 122-128, Postfach 3001 Berne Switzerland
3. Institute of Animal Pathology; Department of Clinical Veterinary Medicine; Vetsuisse Faculty; University of Bern; Länggass-Strasse 122-128, Postfach 3001 Berne Switzerland