1. Department of Obstetrics and Gynecology , Fondazione IRCCS Policlinico San Matteo , Pavia , Italy
2. Fetal Medicine Unit , Saint George’s Hospital , London , UK
3. Vascular Biology Research Centre , Molecular and Clinical Sciences Research Institute, St George’s University of London , London , UK
4. Fetal Medicine Unit , Liverpool Women’s Hospital, University of Liverpool , Liverpool , UK
5. Division of Maternal-Fetal Medicine , Indiana University School of Medicine , Indianapolis , IN , USA
6. The Fetal Center at Riley Children’s Hospital , Indianapolis , IN , USA
7. Department of Obstetrics and Gynecology , Fondazione Policlinico Tor Vergata , Rome , Italy
8. Department of Environmental and Preventive sciences , University of Ferrara , Ferrara , Italy
9. Department of Obstetrics and Gynecology , University of Naples , Naples , Italy
10. Center for Fetal Care and High-risk Pregnancy, Department of Obstetrics and Gynecology , University of Chieti Via Dei Vestini , Chieti , Italy