1. The Centre of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
2. The Research Unit for General Practice in Region Zealand, Denmark
3. Department of Community Medicine, General Practice Research Unit, Faculty of Health Sciences, UiT, The Arctic University of Norway, Tromsø, Norway
4. Department of Internal Medicine, Aalborg University Hospital, Aalborg, Denmark
5. Department of Clinical Medicine, Aalborg University Hospital, Aalborg, Denmark