1 Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
2 Department of Orofacial Pain and Jaw Function, Faculty of Odontology, Malmö University, Malmö, Sweden.
3 Department of Oral and Maxillofacial Diseases, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland.
4 Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.
5 Department of Neurosciences, Reproductive Sciences and Oral Sciences, Division of Orthodontics and Temporomandibular Disorders, University of Naples Federico II, Naples, Italy.
6 Faculty of Dentistry, Centre for Multimodal Sensorimotor and Pain Research, University of Toronto, Toronto, Ontario, Canada.
7 Department of Oral Medicine, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
8 Newcastle University, Framlington Place, Newcastle upon Tyne, UK.
10 Department of Odontology, Orofacial Pain and Jaw Function, Faculty of Medicine, Umeå University, Umeå, Sweden.
11 Orofacial Pain Unit, School of Dentistry, Department of Medical Biotechnologies, University of Siena, Italy.
12 Division of TMD and Orofacial Pain, School of Dentistry, Department of Radiology, Medical School, University of Minneapolis, Minneapolis, Minnesota, USA.
13 Orofacial Pain and TMD Program, Facultad de Odontologia, Universidad Andres Bello, Santiago, Chile.
14 Faculty of Dentistry, National University of Singapore, Singapore.
15 Department of Endodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.
16 Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Quebec, Canada.
17 Faculty of Dentistry, Department of Physiology, Temerty Faculty of Medicine, and Centre for the Study of Pain, University of Toronto, Toronto, Ontario, Canada.