[1] University Research Clinic,AmbuFlex/WestChronic, Occupational Medicine, Regional Hospital West Jutland
[2] Aarhus University,Department of Rheumatology
[3] Aarhus University Hospital,Department of Clinical Medicine
[4] Aarhus University,Psychiatric Research Unit, Psychiatric Centre North Zealand
[5] University of Copenhagen,Department of Clinical Epidemiology
[6] Aarhus University Hospital,Department of Occupational Medicine, Regional Hospital West Jutland
[7] University Research Clinic,undefined