Affiliation: | 1. Maternal-Fetal Medicine Unit, Department of Obstetrics and Gynecology, Cairo University, Cairo, Egypt;2. Department of Obstetrics and Gynecology, Sant’Orsola Malpighi University Hospital, Bologna University, Bologna, Italy;3. Department of Obstetrics and Gynecology, Cairo University, Cairo, Egypt;4. Fetal Medicine Research Institute, King''s College Hospital, London, United Kingdom |