1. Department of Obstetrics and Gynecology University Hospital of Parma Parma Italy
2. Department of Obstetrics Hôpital Intercommunal de Montreuil Montreuil France
3. Department of Obstetrics and Fetal Medicine, Hôpital Necker‐Enfants Malades, Assistance Publique‐Hopitaux de Paris Paris Descartes University Paris France
4. Department of Medicine and Surgery, Obstetrics and Gynecology Unit University of Parma Parma Italy
5. Department of Radiology University Hospital of Parma Parma Italy
6. Department of Pediatric Radiology, Hôpital Necker‐Enfants Malades, APHP Université Paris Descartes Paris France