1. Department of Obstetrics and GynecologyUniversity Hospital Brugmann, Université Libre de Bruxelles Brussels Belgium
2. Obstetrics and Gynecology Department, Hospital Universitario de Torrejón, Torrejón de ArdozUniversidad Francisco de Vitoria Madrid Spain
3. Department of Obstetrics and Gynecology, Antoine‐Béclère Hospital, Assistance Publique‐Hôpitaux de Paris (AP‐HP)Université Paris‐Sud Clamart France
4. Division of Obstetrics and Gynecology, Department of Clinical and Experimental SciencesUniversity of Brescia Brescia Italy
5. Tuebingen University HospitalObstetrics and Gynaecology Tuebingen Germany
6. Center of Fetal Medicine, Department of ObstetricsCopenhagen University Hospital Rigshospitalet Copenhagen Denmark
7. Department of Obstetrics & GynaecologyAmsterdam University Medical Centers Amsterdam The Netherlands
8. Department of Obstetrics and Gynecology, Centre for Perinatal and Reproductive MedicineUniversity Hospital, University of Perugia Perugia Italy
9. Fetal Medicine Research InstituteKing's College Hospital London UK