1. Departments of Endocrinology, Clinical Biochemistry Newcastle‐upon‐Tyne Hospitals NHS Foundation Trust Newcastle upon Tyne UK
2. Department of Endocrinology, Barts & the London School of Medicine and Dentistry, William Harvey Research Institute Queen Mary University of London London UK
3. Translational & Clinical Research Institute Newcastle University Newcastle upon Tyne UK
4. Northumbria NHS Foundation Trust North Tyneside General Hospital North Shields UK
5. Clinical Biochemistry Newcastle‐upon‐Tyne Hospitals NHS Foundation Trust Newcastle upon Tyne UK
6. Department of Metabolism Digestion & Reproduction Imperial College London UK