1. Dermatology Department, College of Medicine, King Saud University, Riyadh, Saudi Arabia
2. Vitiligo Research Chair, College of Medicine, King Saud University, Riyadh, Saudi Arabia
3. Department of Dermatology, University of Dammam, Saudi Arabia
4. Department of Dermatology, Security Forces Hospital Riyadh, Saudi Arabia
5. Department of Dermatology, College of Medicine, Al-Imam University, Riyadh, Saudi Arabia
6. Department of Dermatology, College of Medicine, Qassim University, Saudi Arabia
7. Department of Dermatology, Asir Central Hospital, Abha, Saudi Arabia
8. Department of Dermatology, King Fahd Armed Forces Hospital, Jeddah, Saudi Arabia