1. Department of Dermatology and Venereology, Faculty of Medicine Al Azhar University Cairo Egypt
2. Department of Dermatology and Venereology, Faculty of Medicine, Al‐Hussin University Hospital Al‐Azhar University Cairo Egypt
3. Department of Dermatology and Venereology Military Medical Academy Cairo Egypt
4. Department of Dermatology and Venereology, Faculty of Medicine for Girls Al‐Azhar University Cairo Egypt