1. School of Dental Sciences Newcastle University Newcastle upon Tyne UK
2. School of Dental Medicine University at Buffalo Buffalo NY USA
3. College of Dentistry University of Kentucky Lexington KY USA
4. Institute of Dentistry University of Turku Turku Finland
5. Nihon University Tokyo Japan
6. Faculty of Medicine University of Turku Finland
7. Department of Orofacial pain and Dysfunction Academic Centre for Dentistry Amsterdam (ACTA) University of Amsterdam and Vrije Universiteit Amsterdam Amsterdam The Netherlands
8. Rutgers School of Dental Medicine Newark NJ USA
9. King’s College London Dental Institute London UK
10. Department of Dentistry and Oral Health Aarhus University Aarhus Denmark