1. Diabetes Research Group, Cardiff University School of Medicine, Cardiff CF14 4XN, UK.
2. Department of Immunobiology, Faculty of Life Sciences and Medicine, King’s College London, London SE19RT, UK.
3. Department of Diabetes and Endocrinology, Guy’s and St Thomas’ Hospital National Health Service (NHS) Foundation Trust, London SE19RT, UK.
4. National Institute of Health Research Biomedical Research Centre at Guy’s and St Thomas’ Hospital and King’s College London, London SE19RT, UK.
5. Clinical Research Facility, University Hospital of Wales, Cardiff CF14 4XN, UK.
6. Diabetes Research Unit Cymru, Swansea University, Swansea SA2 8PP, UK.
7. Joint Clinical Research Unit, University Hospitals Bristol Foundation Trust, Bristol BS2 8HW, UK.
8. Diabetes and Endocrinology Department, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle NE1 4LP, UK.
9. Diabetes and Endocrinology Department, Countess of Chester Hospital NHS Foundation Trust, Chester CH2 1UL, UK.
10. Division of Epidemiology and Biostatistics, Western Michigan University School of Medicine, MI 49008, USA.
11. Haematology Clinical Trials Unit, Cardiff University School of Medicine, Cardiff CF14 4XN, UK.
12. King’s Health Partners Institute of Diabetes, Endocrinology and Obesity, London SE19RT, UK.