1. Department of Obstetrics and Gynecology, Assiut University, Assiut, Egypt
2. Center of Excellence of Stem Cells and Regenerative Medicine CESCRM, Assiut University, Assiut, Egypt
3. Department of Forensic Medicine and Toxicology, Assiut University, Assiut, Egypt
4. Department of Histology, Assiut University, Assiut, Egypt