1. 1st Department of Internal Medicine National and Kapodistrian University of Athens Athens Greece
2. Endocrinology and Diabetes Clinic University General Hospital of Heraklion Heraklion Greece
3. Department of Biological Chemistry Medical School National and Kapodistrian University of Athens Athens Greece
4. 1st Department of Propaedeutic and Internal Medicine National and Kapodistrian University of Athens Athens Greece
5. Department of Neurosurgery General Hospital of Nikaia‐Pireas, Agios Panteleimon Athens Greece
6. Oxford Centre for Diabetes, Endocrinology and Metabolism University of Oxford Oxford UK
7. Centre for Endocrinology Barts and the London School of Medicine London UK