1. Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
2. Department of Respiratory Medicine, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
3. Department of Diabetes and Endocrinology, Heart of England NHS Foundation Trust, Birmingham, United Kingdom
4. Department of Diabetes, Derby Teaching Hospitals NHS Foundation NHS Trust, Derby, United Kingdom
5. Warwick Medical School, University of Warwick, Coventry, United Kingdom
6. Centre of Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, United Kingdom
7. Independent Epidemiology and Statistical Consultant, Epidemiology, Research Design and Statistical Consulting (ERDASC), Leicestershire, United Kingdom