1. Department of Clinical Pathology, South Egypt Cancer Institute, Assiut, Egypt;
2. Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt;
3. Medical Oncology, South Egypt Cancer Institute, Assiut, Egypt;
4. Radiotherapy Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt;
5. Radiodiagnosis Department, Faculty of Medicine, Assiut University, Assiut, Egypt;
6. Radiodiagnosis Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt;
7. Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, USA