1. Department of Medical Microbiology and Immunology Faculty of Medicine Northern Border University Arar Saudi Arabia
2. Department of Medical Microbiology and Immunology Faculty of Medicine Mansoura University Mansoura Egypt
3. Department of Medical Biochemistry Faculty of Medicine Northern Border University Arar Saudi Arabia
4. Department of Medical Biochemistry and Molecular Biology Faculty of Medicine Suez Canal University Ismailia Egypt
5. Department of Surgery School of Medicine Tulane University New Orleans LA USA
6. Genetics Unit Department of Histology and Cell Biology Faculty of Medicine Suez Canal University Ismailia Egypt