1. Department of Medical and Health Sciences, Division of Anaesthesia; Linköping University; Linköping Sweden
2. Department of Clinical and Experimental Medicine, Occupational and Environmental Medicine, Faculty of Medicine and Health Sciences; Linköping University; Linköping Sweden
3. Department of Neurobiology, Care Sciences and Society (NVS), Division of Clinical geriatrics; Karolinska Institutet (KI); Helsingborg Sweden
4. Department of Clinical Sciences Helsingborg; Lund University; Sweden
5. Department of Clinical and Experimental Medicine; Linköping University; Linkoping Sweden
6. Division of Anaesthesia, Department of Medical and Health Sciences; Linköping University; Sweden