1. Department of Oncology and Metabolism University of Sheffield Sheffield UK
2. Sheffield Children's Hospital NHS Foundation Trust Sheffield UK
3. Institute of Work Psychology, Management School University of Sheffield Sheffield UK
4. School of Health and Related Research, University of Sheffield Sheffield UK
5. Office for Rare Conditions Royal Hospital for Children & Queen Elizabeth University Hospital Glasgow UK
6. Developmental Endocrinology Research Group University of Glasgow Glasgow UK
7. Department of Pediatric Endocrinology, Sophia Children's Hospital Erasmus Medical Centre Rotterdam the Netherlands
8. Hormones and Molecular Genetics Laboratory LIM 42, Department of Internal Medicine University of Sao Paulo Sao Paulo Brazil
9. Department of Medical and Surgical Sciences, Pediatric Unit, Endo‐ERN Center for Rare Endocrine Diseases S. Orsola‐Malpighi University Hospital Bologna Italy
10. Department of Pediatrics Aarhus University Hospital Aarhus Denmark
11. Department of Pediatrics Technical University Munich Munich Germany
12. Department of Pediatrics Klinikum Wels‐Grieskirchen Wels Austria
13. Department of Pediatric Endocrinology Radboud University Medical Centre Nijmegen the Netherlands
14. Amalia Children's Hospital Radboud University Medical Centre Nijmegen the Netherlands
15. Pediatric Surgery Service Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
16. Institute for Diabetes and Endocrinology Schneider's Children Medical Center of Israel Petah‐Tikvah Israel
17. Pediatrics Department Ain Shams University Cairo Egypt
18. Baskent University Istanbul Hospital Pediatric Endocrinology Istanbul Turkey
19. Department of Paediatric Endocrinology, Erasmus MC, Sophia Children's Hospital University Medical Center Rotterdam Rotterdam the Netherlands
20. Department of Paediatrics Leiden University Medical Centre Leiden the Netherlands
21. Department of Paediatrics Medical University of Varna Varna Bulgaria
22. Pediatric Endocrinology Wilhelmina Children's Hospital University Medical Centre Utrecht Utrecht the Netherlands
23. Paediatric Endocrinology, Hospital Universitario Vall d'Hebron CIBER de Enfermedades Raras (CIBERER) ISCIII Barcelona Spain
24. Department of Endocrinology University of Medicine and Pharmacy Craiova Craiova Romania
25. Department of Endocrinology Institute for Mother and Child Healthcare of Serbia “Dr Vukan Čupić” Belgrade Serbia
26. Institute for Experimental Pediatric Endocrinology and Center for Chronically Sick Children, Charite‐Universitätsmedizin Berlin Germany
27. Department of Women's and Children's Health Karolinska Institutet Stockholm Sweden
28. Department of Paediatric Endocrinology, Astrid Lindgren Children Hospital Karolinska University Hospital Stockholm Sweden
29. Istanbul Faculty of Medicine, Paediatric Endocrinology Unit Istanbul University Istanbul Turkey
30. Pediatric Department Kantonsspital Winterthur Winterthur Switzerland
31. Paediatric Endocrinology Regina Margherita Children's Hospital Torino Italy
32. Department of Public Sciences and Pediatrics University of Torino Torino Italy
33. Department of Pediatrics University of Cambridge, Cambridge, United Kingdom Biomedical Campus Cambridge UK
34. Centro de Investigaciones Endocrinológicas (CEDIE‐CONICET), Hospital de Niños Ricardo Gutiérrez Buenos Aires Argentina
35. Pediatric Endocrinology and Diabetes Marmara University Istanbul Turkey
36. Department of Medicine III University Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany