1. Division of Dermatology, Security Forces Hospital, Riyadh, Saudi Arabia
2. Princess Nourah Bint Abdul Rahman University, Riyadh, Saudi Arabia
3. Department of Dermatology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
4. Department of Dermatology, King Fahad Medical City, Riyadh, Saudi Arabia
5. Department of Dermatology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
6. Department of Dermatology, King Saud Medical City, Riyadh, Saudi Arabia