1 Department of Anaesthesiology and Intensive Care, Division of Critical Care and Emergencies, Oslo University Hospital, Oslo, Norway. ANEROB@ous-hf.no.
2 Centre for Medical Ethics, University of Oslo, Oslo, Norway. ANEROB@ous-hf.no.
3 Intensive Care Consultant, Nottingham University Hospitals NHS Trust, Nottingham, UK.
4 Deceased Organ Donation, NHS Blood and Transplant, Bristol, UK.