1. Department of Internal Medicine, Hematology Unit, Assiut University Hospital, Assiut, Egypt
2. Department of Internal Medicine, Cardiology and Critical Care Unit, Assiut University Hospital, Assiut, Egypt
3. Department of Clinical Pathology, Assiut University Hospital, Assiut, Egypt
4. Department of Internal Medicine, Nephrology Unit, Assiut University Hospital, Assiut, Egypt