1. Department of Medical Biochemistry Faculty of Medicine, Tanta University Tanta Egypt
2. Department of Pharmacology Faculty of Medicine, Tanta University Tanta Egypt
3. Department of Internal Medicine Faculty of Medicine, Tanta University Tanta Egypt
4. Department of Medical Physiology Faculty of Medicine, Tanta University Tanta Egypt
5. Department of Histology Faculty of Medicine, Tanta University Tanta Egypt
6. Department of Toxicology Faculty of Medicine, Tanta University Tanta Egypt
7. Department of Pathology Faculty of Medicine, Zagazig University Tanta Egypt