1. Department of Pharmacology, Faculty of Medicine, Minia University, Minya, Egypt;
2. Department of Histology and Cell Biology, Faculty of Medicine, Minia University, Minya, Egypt;
3. Department of Obstetrics & Gynecology, Faculty of Medicine, Al-Azhar University, Assiut, Egypt;
4. Department of Medical Biochemistry, Faculty of Medicine, Minia University, Minya, Egypt