1. Fetal Medicine Unit, Department of Obstetrics and Gynecology; Vrije Universiteit Medical Center; Amsterdam The Netherlands
2. Department of Obstetrics and Fetal Medicine; University Medical Center Hamburg-Eppendorf; Hamburg Germany
3. University Medical Center, Division of Woman and Baby; Utrecht The Netherlands
4. St George's, University of London and St George's University Hospitals NHS Foundation Trust; Molecular and Clinical Sciences Research Institute; London UK
5. Department of Academic Neonatology; UCL Institute for Women's Health; London UK
6. Department of Neonatology; Emma Children's Hospital Academic Medical Centre; Amsterdam The Netherlands
7. Department of Obstetrics & Gynecology; University of Turin; Turin Italy
8. Department of Obstetrics and Gynecology, Lund University; University Hospital; Lund Sweden
9. Maternal-Fetal Medicine Unit, University of Parma; Parma Italy
10. Department of Perinatology; Isala Clinics; Zwolle The Netherlands
11. Center for Mother and Child of the Philipps University; Marburg Germany
12. Department of Obstetrics and Gynecology; Medical University Innsbruck; Innsbruck Austria
13. Perinatal Center, Wilhelmina Children's Hospital; Utrecht The Netherlands
14. Division of Obstetrics and Prenatal Medicine, Department of Obstetrics and Gynaecology; Erasmus MC; Rotterdam The Netherlands
15. Buzzi Children's Hospital; University of Milan; Milan Italy
16. Department of Obstetrics and Gynecology; Academic Medical Centre; Amsterdam The Netherlands
17. Department of Gynecology and Obstetrics; University Federico II of Naples; Naples Italy
18. Section of Perinatal Medicine, Department of Obstetrics and Gynecology; Technical University; Munich Germany
19. Department of Obstetrics and Gynecology; Medical University of Graz; Graz Austria
20. Department of Biomedicine, Tor Vergata University, Policlinico Casilino; Rome Italy
21. Department of Obstetrics and Gynaecology, City Hospital; Nottingham UK
22. Department of Surgery and Cancer; Imperial College London; London UK
23. Department of Development and Regeneration; KU Leuven; Leuven Belgium