1. Department of Companion Animals and Horses; Small Animal Clinic; Small Animal Surgery; University of Veterinary Medicine Vienna; Veterinaerplatz 1 Vienna 1210 Austria
2. Department of Companion Animals and Horses; Section for Diagnostic Imaging; University of Veterinary Medicine Vienna; Vienna Austria
3. Department of Biomedical Sciences; Platform Bioinformatics and Biostatistics; University of Veterinary Medicine Vienna; Vienna Austria
4. Department of Clinical Studies; Section of Surgery; Dentistry and Oral Surgery Service; Matthew J. Ryan Veterinary Hospital; University of Pennsylvania; Philadelphia PA USA
5. Department of Companion Animals and Horses; Small Animal Clinic; Internal Medicine; University of Veterinary Medicine Vienna; Vienna Austria