1. Division of Prenatal Diagnosis, Department of Obstetrics and Gynecology; Wolfson Medical Center; Holon Israel
2. Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center and Sackler School of Medicine; Tel Aviv University; Tel Aviv Israel
3. Department of Obstetrics and Gynecology; Bnai Zion Medical Center; Haifa Israel
4. The Ruth and Bruce Rappaport Faculty of Medicine; Technion Haifa Israel