1. Department of Clinical Science and K.G. Jebsen Center of Autoimmune Diseases, University of Bergen , Bergen, Norway
2. Department of Medicine, Haukeland University Hospital , Bergen, Norway
3. Aix Marseille Univ, INSERM U1251, Marseille Medical genetics, Department of Endocrinology, Assistance Publique-Hopitaux de Marseille , 13005 Marseille, France
4. Department of Endocrinology, University Hospitals Birmingham NHS Foundation Trust , Birmingham, UK
5. Department of Oncology and Hematology, University of Milan, European Institute of Oncology, IRCCS , Milan, Italy
6. Department of Endocrinology, University Hospitals Leuven , Leuven, Belgium
7. Pituitary Center, Department of Medicine and Neurological Surgery, Oregon Health & Science University , Portland, Oregon, USA
8. Department of Endocrinology, Christie Hospital NHS Foundation Trust, University of Manchester , Manchester, UK
9. Endocrine Unit, Pisa University Hospital , Pisa, Italy
10. Endocrine Unit and Diabetes Centre, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens , Athens, Greece
11. Department of Internal Medicine and Oncology, ENETS Center of Excellence, Faculty of Medicine, Semmelweis University , Budapest, Hungary
12. Department of Medical Oncology, Leiden University Medical Center , Leiden, The Netherlands
13. Department of Clinical Epidemiology, Leiden University Medical Center , Leiden, The Netherlands