1. Clinical Pathology Department, Hematology Unit, Mansoura University Oncology Center, Mansoura University, Mansoura, Egypt
2. Internal Medicine Department, Hematology Unit, Internal medicine department, Faculty of Medicine, Mansoura university, Mansoura, Egypt
3. Zoology Department, Physiology, Zoology department, Faculty of science, Damietta University, Damietta, Egypt