1. Department of Intensive Care Copenhagen University Hospital—Rigshospitalet Copenhagen Denmark
2. Department of Anaesthesiology Zealand University Hospital Køge Denmark
3. Department of Intensive Care Aarhus University Hospital Aarkus Denmark
4. Department of Anaesthesiology and Intensive Care Odense University Hospital Odense Denmark
5. Department of Anaesthesia and Critical Care Medicine Hospital Sønderjylland University Hospital of Southern Denmark Kolding Denmark
6. Department of Anaesthesia and Intensive Care Lillebælt Hospital Kolding Denmark
7. Department of Anaesthesia and Intensive Care Aalborg University Hospital Aalborg Denmark