1. Department of Dermatology, Andrology and VenereologyFaculty of MedicineAlexandria University Alexandria Egypt
2. Department of PathologyFaculty of MedicineAlexandria University Alexandria Egypt
3. Department of Clinical SciencesCollege of MedicineUniversity of Sharjah Sharjah UAE
4. Department of Histology and Cell BiologyFaculty of MedicineAlexandria University Alexandria Egypt
5. Department of DermatologyFaculty of MedicineCairo University Cairo Egypt
6. Department of DermatologyEnvironmental Medicine and Health TheoryUniversity of Osnabrück Osnabrück Germany