1. Department of Pathology Bacteriology and Avian Diseases; Faculty of Veterinary Medicine, Ghent University; Salisburylaan 133 9820 Merelbeke Belgium
2. Department of Large Animal Internal Medicine; Faculty of Veterinary Medicine, Ghent University; Salisburylaan 133 9820 Merelbeke Belgium
3. Department of Pharmacology, Pharmacy and Toxicology; Faculty of Veterinary Medicine, Ghent University; Salisburylaan 133 9820 Merelbeke Belgium
4. P.P. Rubenslaan 29 9820 Merelbeke Belgium