1. Department of Odontology, Clinical Oral Physiology, Faculty of Medicine University of Umeå Umeå Sweden
2. Department of Occupational and Public Health Sciences, Faculty of Health and Occupational Studies, Centre for Musculoskeletal Research University of Gävle Gävle Sweden
3. Department of Community Medicine and Rehabilitation, Faculty of Medicine University of Umeå Umeå Sweden
4. Department of Orofacial Pain and Jaw Function, Faculty of Odontology University of Malmö Malmö Sweden
5. Scandinavian Center for Orofacial Neurosciences (SCON) Malmö Sweden