1. Unit for Psychiatric Research, Aalborg Psychiatric Hospital, Aarhus University Hospital, Denmark
2. North Jutland Public Health Medical Office, Aalborg, Denmark
3. Department of Social Medicine and Department of Occupational Medicine, Aalborg Hospital, Aarhus University Hospital, Denmark
4. Centre for Psychiatric Research, Aarhus University Hospital, Risskov, Denmark
5. Psychiatric Department, Vejle General Hospital, Vejle, Denmark
6. Clinic for Anxiety Disorders, Aarhus University Hospital, Risskov, Denmark
7. Unit for Psychiatric Research, Aalborg Psychiatric Hospital, Aarhus University Hospital, Denmark,