1. 1Usher Institute, University of Edinburgh, Edinburgh, UK
2. 2Edinburgh Centre for Endocrinology & Diabetes, NHS Lothian, Edinburgh, UK
3. 3Portsmouth Hospital NHS Trust, Portsmouth, UK
4. 4NHS Greater Glasgow and Clyde, Glasgow, UK
5. 5Mills-Peninsula Medical Center, San Mateo, California, USA
6. 6Ipswich Hospital, East Suffolk and North East Essex NHS Trust, Colchester, UK
7. 7University of East Anglia, Norwich, UK
8. 8Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, University of Manchester, Manchester, UK
9. 9Manchester Diabetes Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
10. 10Institute of Applied Health Research, University of Birmingham, Birmingham, UK
11. 11Centre for Cardiovascular Sciences, The Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK