1. Endocrine Signalling Group, Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK
2. Comparative Biomedical Sciences, Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK
3. Department of Medical Genetics, University of Calgary, Calgary, AB T2N 4N2, Canada
4. Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
5. Clinical Sciences & Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK
6. Veterinary Specialist Consultations, Loosdrechtseweg 56, 1215 JX Hilversum, The Netherlands
7. Department of Translational Science, Bristol Medical School, University of Bristol, Whitson Street, Bristol BS1 3NY, UK
8. Endocrine Signaling Group, Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, Wilson Road, East Lansing, MI 48824, USA