Consultant in Endocrinology, Diabetes and Internal Medicine, East Kent University Hospitals NHS, UK Endocrinology Unit, William Harvey Hospital, East Kent Hospitals University NHS Foundation Trust, National Health Service (NHS), England. Consultant in Endocrinology, Diabetes and Internal Medicine, Newcastle upon Tyne Hospitals, NHS, UK Consultant in Endocrinology, Diabetes and Internal Medicine, South Tees Hospitals, NHS, UK