1. Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano, 70010 Bari, Italy
2. Veterinary Orthopaedic Traumatologic Centre of Arenzano, Arenzano, 16011 Genova, Italy
3. Veterinary Institute of Novara, Granozzo con Monticello, 20060 Novara, Italy
4. Department of Animal Medicine, Production and Health, University of Padova, 35020 Legnaro, Italy
5. Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, CH-8057 Zurich, Switzerland
6. Veterinary Medical Research Institute, Hungarian Academy of Sciences, H-1143 Budapest, Hungary
7. Department of Pharmacology and Toxicology, University of Veterinary Medicine, H-1078 Budapest, Hungary