| Affiliation: | 1. Division of Veterinary Clinical Sciences, The Roslin Institute, Royal (Dick) School of Veterinary Studies, Hospital for Small Animals, The University of Edinburgh, Roslin, Midlothian EH25 9RG;2. Dick White Referrals, Six Mile Bottom, Cambridgeshire CB8 0UH;3. Davies Veterinary Specialists, Higham Gobion, Hitchin, Hertfordshire SG5 3HR;4. Powell Torrance Diagnostic Services, Higham Gobion, Hitchin, Hertfordshire SG5 3HR;5. Scottish Trace Element and Micronutrient Reference Laboratory, Department of Clinical Biochemistry, Glasgow Royal Infirmary, Glasgow G4 0SF |
