1. Department of Obstetrics and Gynecology; Academic Medical Centre; Amsterdam The Netherlands
2. Fetal Medicine Unit, St George's; University of London & St George's University Hospitals NHS Foundation Trust, Molecular and Clinical Sciences Research Institute; London UK
3. Maternal Fetal Medicine Unit; University of Brescia; Brescia Italy
4. Center for Mother and Child of the Phillips University; Marburg Germany
5. Fetal Medicine Unit, Department of Obstetrics and Gynaecology; University Medical Centre Groningen; Groningen The Netherlands
6. Obstetrics and Gynecology; Medical University of Innsbruck; Innsbruck Austria
7. Perinatal Center, Wilhelmina Children's Hospital; Utrecht The Netherlands
8. Department of Obstetrics and Fetal Medicine; University Medical Center Hamburg-Eppendorf; Hamburg Germany
9. Division of Obstetrics and Prenatal Medicine, Department of Obstetrics and Gynaecology, Erasmus MC; Rotterdam The Netherlands
10. Children's Hospital, Buzzi; University of Milan; Milan Italy
11. Department of Obstetrics and Gynecology; Maggiore Hospital, University of Parma; Parma Italy
12. University College London Institute for Women's Health Ringgold Standard Institution - Neonatology; London UK
13. Department of Gynecology and Obstetrics; University Federico II of Naples; Naples Italy
14. Section of Perinatal Medicine, Department of Obstetrics and Gynecology; Technical University; Munich Germany
15. Department of Obstetrics, Vivantes Clinic Neukölln; Berlin Germany
16. Department of Obstetrics and Gynecology; University of Turin; Turin Italy
17. Department of Neonatology; Emma Children's Hospital Academic Medical Centre; Amsterdam The Netherlands
18. Centre for Fetal Care, Queen Charlotte's and Chelsea Hospital; Imperial College London; London UK
19. Department of Development and Regeneration; KU Leuven; Leuven Belgium