1 Department of Anaesthesiology and Intensive Care, Gødstrup Hospital, Herning, Denmark.
2 Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
3 Palliative Care Unit, Department of Oncology, Aarhus University Hospital, Aarhus, Denmark.
4 Department of Anaesthesiology and Intensive Care Medicine, St. Olav's University Hospital, Trondheim, Norway.
5 Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway.
6 Department of Anaesthesia and Intensive Care, Tampere University Hospital, Tampere, Finland.
7 Faculty of Medicine and Health Technology, Wellbeing Services County of Pirkanmaa and Tampere University, Tampere, Finland.
8 Department of Anaesthesia and Intensive Care, Landspitali University Hospital, Reykjavik, Iceland.
9 Anaesthesia and Intensive Care, Baerum Hospital, Baerum, Norway.
10 Department of Postoperative and Intensive Care Nursing, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway.
11 Lovisenberg Diaconal University College, Oslo, Norway.
12 Department of Anaesthesiology and Intensive Care, Lillebaelt Hospital, University Hospital of Southern Denmark, Kolding, Denmark.
13 Department of Regional Health Research, University of Southern Denmark, Odense, Denmark.
14 Department of Clinical Sciences Lund, Respiratory Medicine, Allergology and Palliative Medicine, Institute for Palliative Care, Faculty of Medicine, Lund University, Lund, Sweden.
15 Institute for Palliative Care, Primary Health Care Skåne, Lund, Sweden.
16 Department of Palliative Care and Advanced Home Health Care, Primary Health Care Skåne, Lund, Sweden.
17 Palliative Care Centre, Tampere University Hospital, Tampere, Finland.
18 Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
19 Department of Anaesthesiology and Intensive Care Medicine, Institute of Clinical Sciences, Sahlgrenska Academy, Sahlgrenska University Hospital, University of Gothenburg, Gothenburg, Sweden.
20 Department of Intensive Care, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
21 Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.