1. Department of Biomedical Technologies, School of Dentistry University of Siena Siena Italy
2. Department of Oral and Maxillofacial Diseases University of Helsinki Helsinki Finland
3. Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA) University of Amsterdam and Vrije Universiteit Amsterdam Amsterdam The Netherlands
4. Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health Aarhus University Aarhus Denmark
5. Department of Dental Medicine Karolinska Institutet Huddinge Sweden
6. Scandinavian Center for Orofacial Neurosciences (SCON) Aarhus Denmark