1. Medical Biochemistry & Molecular Biology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
2. Pharmacology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
3. Physiology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
4. Anatomy & Embryology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
5. Clinical pathology department, Faculty of Medicine, Tanta University, Tanta, Egypt