1. Department of Perioperative Medicine and Intensive Care Karolinska University Hospital Huddinge Sweden
2. Department of Anaesthesiology, Faculty of Medicine and Health Örebro University Örebro Sweden
3. Department of Perioperative Medicine and Intensive Care Karolinska University Hospital Solna Sweden
4. Department of Anesthesiology and Intensive Care, Department of Biomedical and Clinical Sciences Linköping University Linköping Sweden
5. Department of Anaesthesiology and Intensive Care Uppsala University Hospital Uppsala Sweden