1. Department of Dermatology, College of Medicine, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
2. Department of Dermatology, King Fahad Medical City, Riyadh, Saudi Arabia
3. Department of Dermatology, Princess Nourah Bint Abdul Rahman University, Security Forces Hospital, Riyadh, Saudi Arabia
4. Department of Dermatology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia