1. Fetopathology Unit, Hospital Habib Bougatfa, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia;
2. Department of Pathology, Hospital Menzel Bourguiba, Menzel Bourguiba, Tunisia;
3. Department of Gyneco-Obstetrics, Hospital Habib Bougatfa, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia