1. The Health and Care Administration, Department of Rehabilitation, Municipality of Copenhagen, Copenhagen, Denmark,
2. CopenRehab, Institute of Social Medicine, Department of Public Health and Centre for Healthy Ageing, Faculty of Heath Sciences, University of Copenhagen, Copenhagen, Denmark, and
3. The Parker Institute, Department of Rheumatology, Frederiksberg Hospital, Frederiksberg and Institute of Public Health, University of Southern Denmark, Odense, Denmark