1. Clinical Pathology Department, Ministry of Health, Cairo, Egypt;
2. Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt;
3. Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt;
4. Medical Oncology Department, Oncology Centre, Mansoura University, Mansoura, Egypt;
5. Clinical Haematology Department, Oncology Centre, Mansoura University, Mansoura, Egypt