1. Beaumont Veterinary Hospital, 172 Oxford Rd., Kidlington OX5 1EA, UK
2. Zoetis Virtual Laboratory, Leatherhead KT22 7LP, UK
3. Finn Pathologists, Histopathology Department, One Eyed Lane, Diss IP21 5TT, UK
4. Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China