1. Department of Medical Physiology, Faculty of Medicine, Tanta University, Tanta, Egypt
2. Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta, Egypt
3. Department of Histology and Cell Biology, Faculty of Medicine, Tanta University, Tanta, Egypt
4. Department of Pharmacology, Faculty of Medicine, Tanta University, Tanta, Egypt
5. Department of Clinical Pathology, Faculty of Medicine, Tanta University, Tanta, Egypt
6. Department of Internal Medicine, Faculty of Medicine, Tanta University, Tanta, Egypt