1. Department of Pathology Faculty of Medicine Northern Border University Arar Saudi Arabia
2. Department of Pathology Faculty of Medicine Mansoura University Mansoura Egypt
3. Faculty of Medicine Northern Border University Arar Saudi Arabia
4. Department of Anatomy Faculty of Medicine Northern Border University Arar Saudi Arabia
5. Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine Tulane University New Orleans Louisiana USA
6. Genetics Unit Histology and Cell Biology Department Faculty of Medicine Suez Canal University Ismailia Egypt
7. Department of Biochemistry Faculty of Medicine Northern Border University Arar Saudi Arabia
8. Department of Medical Biochemistry and Molecular Biology Faculty of Medicine Suez Canal University Ismailia Egypt