1. Small Animal Hospital, School of Veterinary Medicine University of Glasgow Glasgow United Kingdom
2. Small Animal Referral Centre Animal Health Trust Newmarket United Kingdom
3. Wear Referrals Stockton‐on‐Tees United Kingdom
4. Division of Veterinary Epidemiology and Economics Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW Warsaw Poland
5. Small Animal Teaching Hospital, Small Animal Department, Faculty of Veterinary Medicine Ghent University Ghent Belgium
6. Clinica Neurologica Veterinaria NVA Milan Italy
7. North Downs Specialist Referrals Bletchingley United Kingdom
8. The Queen's Veterinary School Hospital, Department of Veterinary Medicine University of Cambridge Cambridge United Kingdom
9. Fitzpatrick Referrals Orthopaedics and Neurology Godalming United Kingdom
10. School of Veterinary Medicine University of Surrey Guilford United Kingdom
11. Department of Small Animal Clinical Sciences, Virginia‐Maryland College of Veterinary Medicine Virginia Polytechnic Institute and State University Blacksburg Virginia USA