1. Department of Anaesthesia and Intensive Care Medicine Ryhov County Hospital Jönköping Sweden
2. Department of Medical and Health Sciences Cardiovascular Medicine Linköping University Linköping Sweden
3. Department of Oncology Skåne University Hospital Lund Sweden
4. Division of Health Care Analysis Linköping University Linköping Sweden
5. Department of Cardiothoracic Surgery, Anaesthesia and Intensive Care Department of Medical and Health Sciences Linköping University Linköping Sweden