1. Division of Endocrinology and Diabetes, Stanford Diabetes Research Center University Stanford California USA
2. Wellcome Trust‐MRC Institute of Metabolic Science University of Cambridge Cambridge UK
3. Wolfson Diabetes and Endocrine Clinic Cambridge University Hospitals NHS Foundation Trust Cambridge UK
4. Diabetes, Endocrinology and Metabolism Centre Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre Manchester UK
5. Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health University of Manchester Manchester UK
6. University Hospitals Birmingham NHS Foundation Trust Birmingham UK
7. Division of Endocrinology and Diabetology, Department of Internal Medicine Medical University of Graz Graz Austria
8. Institute of Immunology and Immunotherapy University of Birmingham Birmingham UK