1. Department of Dermatology, Venereology and Andrology, Assiut University Hospital, Assiut, Egypt
2. Department of Plastic Surgery, Assiut University Hospital, Assiut, Egypt
3. Department of Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
4. Department of Pathology, Assiut University Hospital, Assiut, Egypt