1. School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
2. Department of Clinical Science and Services; Royal Veterinary College, University of London; Hatfield England
3. Department of Small Animal Medicine and Clinical Biology; Faculty of Veterinary Medicine; Ghent University; Merelbeke Belgium
4. Clinic of Small Animal Medicine, Center of Veterinary Sciences, Ludwig-Maximillians-University of Munich; Munich Germany