1. Centre for High Risk Pregnancy and Fetal Care, Department of Obstetrics and Gynecology University of Chieti Chieti Italy
2. Department of Obstetrics and Gynaecology, Arnas Civico Hospital Palermo Italy
3. Department of Obstetrics and Gynecology, Division of Maternal‐Fetal Medicine New York University SOM New York NY USA
4. Centre for Medical Education and Clinical Research (CEMIC) University Hospital Buenos Aires Argentina
5. Università di Roma Tor Vergata, Division of Maternal‐Fetal Medicine, Ospedale Cristo Re Rome Italy
6. The First I.M. Sechenov Moscow State Medical University, Department of Obstetrics and Gynecology Moscow Russia
7. Department of Maternal and Child Health and Urological Sciences Sapienza University of Rome Rome Italy