Affiliation: | 1. Centre for Small Animal Studies, Animal Health Trust, , Kentford, Newmarket, Suffolk CB8 7UU;2. Oncology Unit, Animal Health Trust, , Kentford, Newmarket, Suffolk CB8 7UU;3. North Downs Specialist Referrals, Friesian Building 3&4, , Bletchingley, Surrey RH1 4QP;4. Department of Veterinary Medicine, University of Cambridge, , Cambridge, CB3 0ES;5. Pathology Unit, Animal Health Trust, , Kentford, Newmarket, Suffolk CB8 7UU |