1. Medical Biochemistry & Molecular Biology Department, Faculty of Medicine, Ain Shams University, Medical Ain Shams Research Center (MASRI). PO Box 11381, Abbassia, Cairo, Egypt
2. Biomedical Research Department, Armed Forces College of Medicine, Cairo, Egypt
3. Armed Forces College of Medicine, Cairo, Egypt
4. Department of Clinical Pathology, Oncology Diagnostic Unit, Faculty of Medicine, Ain Shams University, Cairo, Egypt
5. Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt