Affiliation: | ? Senior Lecturer, Department of Oral and Maxillofacial Surgery, University of Turku, Turku, Finland;† Professor, Head of Department, Department of Clinical Neurophysiology, Turku University Hospital, Turku, Finland;‡ Associate Chief Physician, Department of Oral Diseases, Turku University Hospital, Turku, Finland;§ Statistician, Department of Statistics, University of Turku, Turku, Finland;∥ Chief, Department of Oral Diseases, Turku University Hospital, Turku, Finland |