1. Department of Clinical Oral Physiology; Faculty of Medicine; University of Umeå; Umeå Sweden
2. Department of Oral Kinesiology; Academic Centre for Dentistry Amsterdam (ACTA); University of Amsterdam and VU University Amsterdam; MOVE Research Institute Amsterdam; Amsterdam The Netherlands
3. Department of Orofacial Pain and Jaw Function; Faculty of Odontology; Malmö University; Malmö Sweden