1. Clinical Pathology and Haematology Department, Faculty of Medicine Ain Shams University Biomedical Research Department Cairo Egypt
2. Neurosurgery Department, Faculty of Medicine Mansoura University Mansoura Egypt
3. Department of Paediatric, Faculty of Medicine Ain Shams University Cairo Egypt
4. Department of Biochemistry, Faculty of Medicine Ain Shams University Cairo Egypt
5. Department of Molecular Biology, Faculty of Biotechnology October University for Modern Sciences and Arts (MSA) Cairo Egypt