1. Research Unit of General Practice, Department of Public Health, University of Southern Denmark, Odense, Denmark
2. Psychiatric Research Unit, Psychiatry Region Zealand, Slagelse, Denmark
3. OPEN (Open Patient Data Explorative Network), Odense University Hospital, Region of Southern Denmark, Odense, Denmark
4. Geriatric Research Unit, Department of Geriatric Medicine, Odense University Hospital, Odense, Denmark
5. Department of Clinical Research, University of Southern Denmark, Odense, Denmark
6. Advanced Care Research Centre, Usher Institute, University of Edinburgh, Edinburgh, Scotland
7. Section of General Practice, Research Unit of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark