1. Department of Endocrinology and Diabetes, University Hospitals Sussex NHS Foundation Trust, (Royal Sussex County Hospital), Brighton, UK
2. Department of Endocrinology and Diabetes, University Hospitals Sussex NHS Foundation Trust (Worthing Hospital), Worthing, UK
3. Department of Endocrinology and Diabetes, University Hospitals Sussex NHS Foundation Trust (St Richard’s Hospital), Chichester, UK
4. Department of Surgery, University Hospitals Sussex NHS Foundation Trust (Royal Sussex County Hospital), Brighton, UK