1. Anaesthesiology and Intensive Care Medicine Umeå University and the University Hospital of Umeå Umeå Sweden
2. Anaesthesiology Aalborg University Hospital Aalborg Denmark
3. Anaesthesiology and Intensive Care Medicine Landspitali University Hospital Reykjavik Iceland
4. Anaesthesiology Division of Critical Care Oslo University Hospital Oslo Norway
5. Intensive Care 4131 Copenhagen University Hospital Rigshospitalet Copenhagen Denmark
6. Medicine Innlandet Hospital Trust‐Division Gjøvik Norway and Norwegian Knowledge Centre for the Health Services Oslo Norway
7. Intensive Care Medicine Helsinki University Hospital Helsinki Finland