1. Department of Internal Medicine, Medical Oncology Unit, Mansoura University Oncology Center, Mansoura, Egypt
2. Clinical Pathology Department, Hematology Unit, Mansoura University, Mansoura, Egypt
3. Department of Internal Medicine, Clinical Hematology Unit, Mansoura University Oncology Center, Mansoura, Egypt
4. Department of Medical Microbiology and Immunology, Faculty of Medicine, Mansoura University, Egypt
5. Department of Pediatrics, Genetics Unit, Faculty of Medicine, Mansoura University, Egypt