1. Ghent University Hospital, Department of Pediatrics, Division of Pediatric Endocrinology and Ghent University, Department of Internal Medicine and Pediatrics, Ghent, Belgium
2. Medical University of Vienna, Department of Pediatric Surgery, Vienna, Austria
3. Ghent University Hospital, Department of Neonatology, Ghent, Belgium
4. Medical University Innsbruck, Department of Urology
5. Medical University of Silesia, Department of Pediatrics, Pediatric Endocrinology, Katowice, Poland
6. Medical University of Silesia, Department of Neonatology, Katowice, Poland
7. Ghent University Hospital, Department of Pediatrics, Ghent, Belgium
8. University Hospital of Messina, Department of Human Pathology of Adulthood and Childhood, Messina, Italy
9. Copenhagen University Hospital - Rigshospitalet, Department of Growth and Reproduction, Copenhagen, Denmark
10. Karolinska University Hospital Stockholm, Department of Women’s and Children’s Health Karolinska Institutet, Stockholm, Sweden
11. Bern University Children’s Hospital Inselspital, Department of Pediatrics, Division of Pediatric Endocrinology, Diabetology and Metabolism and Department of BioMedical Research, University of Bern, Bern, Switzerland
12. Erasmus MC - Sophia Children’s Hospital, University Medical Center Rotterdam, Department of Pediatric Endocrinology, GD Rotterdam, the Netherlands
13. Leiden University Medical Centre, Department of Paediatrics, RC Leiden, The Netherlands
14. Erasmus MC - Sophia Children’s Hospital, University Medical Center Rotterdam, Department of Urology and Paediatric Urology, Rotterdam, the Netherlands
15. University of Lübeck, Division of Paediatric Endocrinology and Diabetes, Department of Paediatrics, Lübeck, Germany
16. Developmental Endocrinology Research Group, University of Glasgow, Glasgow, UK