1. Oral Pathology Department, Faculty of Dentistry Chulalongkorn University Bangkok Thailand
2. Department of Oral Biomedical Science‐Division of Oral Diagnosis, Faculty of Dentistry Khon Kaen University Khon Kaen Thailand
3. Department of Oral Biology and Oral Diagnostic Sciences, Faculty of Dentistry Chiang Mai University Chiang Mai Thailand
4. Oral and Maxillofacial Pathology Department, School of Dentistry Tehran University of Medical Sciences Tehran Iran
5. Department of Pathology and Laboratory Medicine, Schulich School of Medicine and Dentistry University of Western Ontario London Ontario Canada