1. Clinical Department for Companion Animals and Horses; University of Veterinary Medicine Vienna; 1210 Vienna Austria
2. Department for Pathology; University of Veterinary Medicine Hannover; 30559 Hannover Germany
3. LABOKLIN; Laboratory for Clinical Diagnostics; 4040 Linz Austria
4. Department for Pathobiology; University of Veterinary Medicine Vienne; 1210 Vienna Austria