1. Cognitive Psychology Unit; Aalborg University; Aalborg Denmark
2. The Research Unit for General Practice; Copenhagen Denmark
3. Department of Psychiatry; Aarhus University Hospital; Aarhus Denmark
4. Royal Dental College; Aarhus University; Aarhus Denmark
5. Danish Pain Research Center; Aarhus University Hospital; Aarhus Denmark
6. Department of Neurology; Aarhus University Hospital; Aarhus Denmark
7. Department of Psychology and Behavioural Sciences; Aarhus University; Aarhus Denmark
8. Department of Psychiatry; Copenhagen University Hospital; Rigshospitalet Denmark