1. Department of Intensive Care Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
2. Department of Anaesthesiology Zealand University Hospital Roskilde Denmark
3. Department of Anaesthesiology and Intensive Care Aarhus University Hospital Aarhus Denmark
4. Department of Anaesthesiology and Intensive Care Odense University Hospital Odense Denmark
5. Department of Anaesthesiology and Intensive Care University Hospital of Southern Denmark Kolding Denmark
6. Department of Anaesthesiology and Intensive Care Bispebjerg Hospital Copenhagen Denmark
7. Department of Anaesthesiology and Intensive Care Aalborg University Hospital Aalborg Denmark
8. Department of Anaesthesiology and Intensive Care Herlev Hospital Herlev Denmark
9. Department of Anaesthesiology and Intensive Care Hjørring Regional Hospital Hjørring Denmark
10. Department of Anaesthesiology and Intensive Care Viborg Regional Hospital Viborg Denmark
11. Department of Anaesthesiology and Intensive Care Holbæk Hospital Holbæk Denmark
12. Department of Anaesthesiology and Intensive Care Randers Regional Hospital Randers Denmark
13. Department of Anaesthesiology and Intensive Care Nykøbing Falster Hospital Nykøbing Falster Denmark
14. Department of Anaesthesiology and Intensive Care Regionshospitalet Gødstrup Herning Denmark
15. Department of Anaesthesiology and Intensive Care North Zealand Hospital Hillerød Denmark
16. Department of Anaesthesiology and Intensive Care Hvidovre Hospital Hvidovre Denmark
17. Department of Neuroanaesthesiology Neuroscience Centre, Rigshospitalet Copenhagen Denmark
18. Department of Anaesthesiology and Intensive Care Slagelse Hospital Slagelse Denmark
19. Department of Anaesthesiology and Intensive Care Zealand University Hospital Roskilde Denmark
20. Department of Anaesthesiology and Intensive Care Gentofte Hospital Gentofte Denmark
21. Department of Anaesthesiology and Intensive Care Horsens Regional Hospital Horsens Denmark
22. Department of Cardiothoracic Anaesthesiology, Rigshospitalet Copenhagen Denmark