1. Department of Oral Medicine, Faculty of Dental Medicine Carol Davila University of Medicine and Pharmacy Bucharest Romania
2. Department of Pathology, Faculty of General Medicine Carol Davila University of Medicine and Pharmacy Bucharest Romania
3. Department of Endodontics, Faculty of Dental Medicine Carol Davila University of Medicine and Pharmacy Bucharest Romania
4. Department of Oral Health and Community Dentistry, Faculty of Dental Medicine Carol Davila University of Medicine and Pharmacy Bucharest Romania
5. Oral and Maxillofacial Department, Faculty of Dental Medicine Carol Davila University of Medicine and Pharmacy Bucharest Romania
6. Faculty of Dentistry, Oral & Craniofacial Sciences King's College London and WHO Collaborating Center for Oral Cancer London UK