1. School of Health Sciences; Jönköping University; Jönköping Sweden
2. Department of Anaesthesia and Intensive Care; Ryhov County Hospital; Jönköping Sweden
3. School of Health and Caring Sciences; Linnaeus University; Kalmar Sweden
4. Division of Nursing Science; Department of Medical and Health Sciences; Linköping University; Linköping Sweden
5. Department of Clinical Neurophysiology; University Hospital; Linköping Sweden