1. Dermatology, Venereology and Andrology Department Faculty of Medicine Suez Canal University Ismailia Egypt
2. Clinical Pathology Department Faculty of Medicine Suez Canal University Ismailia Egypt
3. Belbis General Hospital Sharkia Egypt
4. Dermatology and Leprosy Hospital Zagazig Egypt
5. Department of Surgery School of Medicine Tulane University New Orleans LA USA
6. Genetics Unit, Histology and Cell Biology Department Faculty of Medicine Suez Canal University Ismailia Egypt