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.