1. Department of Intensive Care Copenhagen University Hospital Rigshospitalet Denmark
2. Department of Anaesthesiology Tampere University Hospital Tampere Finland
3. Anaesthesiology and Intensive Care Medicine Umeå University Umeå Sweden
4. Department of Anaesthesiology and Intensive Care Department of Medicine and Health Linköping University Linköping Sweden
5. Department of Anaesthesiology and Intensive Care University Hospital Northern Norway Tromsø Norway