1. Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush EH25 9RG, UK
2. Sydney School of Veterinary Science, The University of Sydney, NSW 2006, Australia
3. Behavioural Referrals Veterinary Practice, 10 Rushton Drive, Upton, Chester CH2 1RE, UK
4. Clinical Sciences and Services, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts AL9 7TA, UK
5. Production and Population Health, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts AL9 7TA, UK