1. Department of Medical Sciences, Uppsala University, Uppsala University Hospital, Uppsala Sweden;
2. Uppsala Clinical Research Center (UCR), Uppsala, Sweden;
3. Department of Clinical Sciences, SUS Malmö, Malmö, Sweden;
4. Division of Geriatric Medicine, Department of Health Sciences, Lund University, Malmö University Hospital, Malmö, Sweden;
5. Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden