1. Department of Dermatology and Venereology Uşak University, School of Medicine Uşak Turkey
2. Department of Dermatology and Venereology Nevşehir State Hospital Nevşehir Turkey
3. Georgetown University School of Medicine Washington District of Columbia USA
4. Department of Dermatology State University of New York Downstate New York USA
5. Department of Dermatology Veterans Health Administration Brooklyn New York USA