1. Department of Pediatrics, Faculty of Medicine, Hematology/Oncology Unit Mansoura University Mansoura Egypt
2. Department of Medical Parasitology, Faculty of Medicine Mansoura University Mansoura Egypt
3. Department of Pediatrics, Faculty of Medicine, Genetics Unit Mansoura University Mansoura Egypt
4. Department of Obstetrics and Gynecology, Faculty of Medicine Mansoura University Mansoura Egypt