[1] National Research Centre for the Working Environment,Department of Public Health
[2] University of Copenhagen,Center for Healthy Aging
[3] University of Copenhagen,Department of Psychology
[4] University of Copenhagen,Department of Occupational Medicine
[5] Copenhagen University Hospital Holbæk,The Research Unit for General Practice and Section of General Practice, Department of Public Health
[6] University of Copenhagen,Department of Health Science and Technology, Physical Activity and Human Performance group
[7] SMI,undefined
[8] Aalborg University,undefined