1. Davies Veterinary Specialists Hitchin UK
2. J.N.King Consultancy Bennwil Switzerland
3. Department of Clinical Science and Services, Beaumont Sainsbury Animal Hospital, Royal Veterinary College University of London London UK
4. Department of Comparative Biomedical Sciences, Royal Veterinary College University of London London UK
5. Department of Clinical Science and Services, Queen Mother Hospital for Animals, Royal Veterinary College University of London London UK