1. Second Department of Obstetrics and Gynecology, Faculty of MedicineAristotle University of Thessaloniki Thessaloniki Greece
2. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Hutzel Women HospitalWayne State University Detroit MI USA
3. Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; and Department of Obstetrics and GynaecologyMonash University Melbourne Australia
4. Obstetrics and Gynecology UnitUniversity of Parma Parma Italy
5. Department of RadiologyUniversity of Toronto Toronto Ontario Canada
6. Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, London, UK; and Vascular Biology Research CentreMolecular and Clinical Sciences Research Institute, St George's University of London London UK
7. SEMEAR Fertilidade, Reproductive Medicine and Ribeirão Preto Medical SchoolUniversity of São Paulo Ribeirão Preto Brazil
8. Department of Obstetrics and Gynecology, Morsani College of MedicineUniversity of South Florida Tampa FL USA
9. Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, London, UK; and Nuffield Department of Obstetrics and GynecologyUniversity of Oxford, Women's Center, John Radcliffe Hospital Oxford UK
10. Department of Obstetrics and Fetal Medicine, Hopital Necker‐Enfants Malades, Assistance Publique‐Hopitaux de ParisParis Descartes University Paris France