1. Unit of Occupational Medicine, Institute of environmental medicine, Karolinska Institutet, Stockholm Sweden
2. Department of Health, Medicine and Caring Sciences, Linköping University, Sweden
3. Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
4. Official statistics Unit, Department for Analysis, Swedish Social Insurance Agency, Stockholm, Sweden
5. Department of Public Health and Caring Sciences, Uppsala University, Uppsala Sweden
6. Department of Health Sciences, Mid Sweden University, Sweden
7. Unit of Research, Education and Development, Östersund Hospital, Östersund, Sweden
8. Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm Sweden
9. Institute for Studies of the Medical Profession LEFO - Legeforskningsinstituttet, Oslo, Norway
10. Institute of Stress Medicine at Region VGR, Gothenburg, Sweden
11. Institute of Health and Care Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
12. Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden