1. Department of Anaesthesia and Intensive Care Aalborg University Hospital Aalborg Denmark
2. Department of Clinical Medicine Aalborg University Aalborg Denmark
3. Centre for Research in Intensive Care (CRIC) Copenhagen Denmark
4. Department of Public Health Section of Biostatistics Copenhagen University Copenhagen Denmark
5. Department of Intensive Care Rigshospitalet Copenhagen Denmark
6. Department of Anaesthesiology and Intensive Care Holbæk Hospital Holbæk Denmark
7. Department of Anaesthesiology Zealand University Hospital Køge Denmark
8. Department of Clinical Medicine University of Copenhagen Copenhagen Denmark