1. Department of Surgery and Anaesthesiology of Domestic Animals Faculty of Veterinary Medicine Ghent University Salisburylaan 133 9820 Merelbeke Belgium
2. Global Stem Cell Technology Noorwegenstraat 4 9940 Evergem Belgium
3. Department of Pathology, Bacteriology and Poultry Diseases Faculty of Veterinary Medicine Ghent University Salisburylaan 133 9820 Merelbeke Belgium
4. Hamsterlaan 4 6705CT The Netherlands