1 Department of Dermatology, King Saud University, Riyadh, Saudi Arabia.
2 Department of Pathology and Laboratory Medicine, College of Medicine, King Khalid University Hospital and King Saud University, Riyadh, Saudi Arabia.
3 College of Medicine, King Saud University, Riyadh, Saudi Arabia. ghadah.alhammad@gmail.com.
4 College of Medicine, King Saud University, Riyadh, Saudi Arabia.