1. Department of Oral and Maxillofacial Radiology, Oral Medicine and Diagnostic Sciences, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia.
2. Department of Medicine and Dentistry, School of Dentistry, University of Alberta, Canada.
3. General Dentist, Riyadh, Kingdom of Saudi Arabia.
4. Department of Oral Medicine and Pathology, Dental University Hospital, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia.
5. Department of Dermatology and Dermatologic Surgery, Prince Sultan Military Medical City, Riyadh, Kingdom of Saudi Arabia.