1. Department of Intensive Care, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
2. Collaboration for Research in Intensive Care (CRIC), Copenhagen, Denmark.
3. Department of Cardiothoracic Anaesthesia and Intensive Care, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
4. The George Institute for Global Health, University of New South Wales, Sydney, NSW, Australia.
5. Malcolm Fisher Department of Intensive Care, Royal North Shore Hospital, Sydney, NSW, Australia.