1. Department of Dermatology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
2. Department of Dermatology, King Faisal Specialist Hospital & Research Centre; General Directorate of Research and Studies, Ministry of Health, Riyadh, Saudi Arabia
3. General Directorate of Research and Studies, Ministry of Health; Department of Dermatology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
4. College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia