1. Wirral Diabetes & Endocrine Unit; Wirral University Teaching Hospitals NHS Foundation Trust; Wirral UK
2. Cardiovascular Research Group; University of Manchester; Manchester UK
3. University Department of Medicine; Central Manchester University Hospitals NHS Foundation Trust; Manchester UK
4. Department of Clinical Chemistry; Central Manchester University Hospitals NHS Foundation Trust; Manchester UK
5. Department of Diabetes and Endocrinology; South Manchester University Hospitals; Manchester UK