1. Department of Clinical Veterinary Science, Vetsuisse Faculty University of Bern Bern Switzerland
2. Department of Molecular Biomedical Sciences, College of Veterinary Medicine North Carolina State University Raleigh North Carolina USA
3. Department of Clinical Research and Veterinary Public Health, Vetsuisse Faculty University of Bern Bern Switzerland
4. Division of Small Animal Clinical Sciences, School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences University of Glasgow Glasgow United Kingdom