1. Institute of Medicine, Sahlgrenska University Hospital, University of Gothenburg, Göteborg, Sweden;
2. Department of Public Health and Caring Sciences/Family Medicine and Clinical Epidemiology, Uppsala University, Uppsala, Sweden;
3. Department of Clinical Sciences, Lund University, University Hospital, Malmö, Sweden;
4. Department of Public Health and Caring Sciences/Geriatrics, Uppsala University, Uppsala, Sweden;
5. Center of Registers in Region Västra Götaland, Göteborg, Sweden.