1. Department of Endocrinology, University Hospital Plymouth, Plymouth, UK
2. Department of Diabetes and Endocrinology, Imperial College Healthcare NHS Trust, London, UK
3. Diabetes Research Centre, University of Leicester, Leicester, UK
4. Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK
5. Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
6. Ipswich Diabetes Centre, East Suffolk and North East Essex Foundation Trust, Ipswich, UK
7. Elsie Bertram Diabetes Centre, Norfolk and Norwich University Hospitals NHS Foundation Trust, UK
8. Norwich Medical School, University of East Anglia, Norwich, UK