1. College of Dental MedicineRoseman University of Health Sciences South Jordan Utah United States
2. Centre for Rural HealthCollege of Health and Medicine, University of Tasmania Tasmania Australia
3. Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of DentistryJazan University Jazan Kingdom of Saudi Arabia
4. Department of Oral MedicineKing's College London and WHO Collaborating Centre for Oral Cancer London United Kingdom