1. Lecturer of Clinical & Chemical Pathology, Faculty of Medicine, Beni Suef University, Beni Suef, Egypt
2. Clinical Pathology Department, Faculty of Medicine, Assiut University, Asyut, Egypt
3. Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura, Egypt
4. Department of Biochemistry, College of Medicine, Almaarefa University, Riyadh, Saudi Arabia
5. Mansoura Nephrology and Dialysis Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
6. Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt