1. Department of Maternal and Child Health and Urological Sciences Sapienza University Rome Italy
2. Department of Obstetrics and Gynecology University of Chieti Chieti Italy
3. Fetal Medicine Unit Saint George's Hospital London UK
4. Vascular Biology Research Center, Molecular and Clinical Sciences Research Institute St George's University of London London UK
5. Division of Maternal and Fetal Medicine Ospedale Cristo ReUniversity of Rome Tor Vergata Rome Italy
6. Department of Obstetrics and Gynecology I.M. Sechenov First Moscow State Medical University Moscow Russia
7. Division of Obstetrics and Gynecology Department of Clinical Science, Intervention and Technology Karolinska Institutet Stockholm Sweden
8. Center for Fetal Medicine Karolinska University Hospital Stockholm Sweden
9. Women's Health and Perinatology Research GroupDepartment of Clinical Medicine Faculty of Health Sciences UiT—The Arctic University of Norway Tromsø Norway
10. Department of Obstetrics and Gynecology University Hospital of Northern Norway Tromsø Norway