1 Faculty of Nursing, Midwifery and Palliative Care, King's College London, London, UK; Department of Critical Care, Guy's & St Thomas' NHS Foundation Trust, London, UK. Electronic address: louise.rose@kcl.ac.uk.
2 Faculty of Nursing, Midwifery and Palliative Care, King's College London, London, UK; Department of Critical Care, Guy's & St Thomas' NHS Foundation Trust, London, UK.
3 Warwick Clinical Trials Unit, Warwick University, Coventry, UK.
4 Department of Critical Care, King's College Hospital, London, UK.
5 School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.
6 Patient/family Member Co-applicant.
7 Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
8 Faculty of Medical Sciences, Newcastle University, Newcastle, UK.
9 Faculty of Nursing, Midwifery and Palliative Care, King's College London, London, UK.
10 Department of Critical Care, Guy's & St Thomas' NHS Foundation Trust, London, UK.
11 Departments of Anaesthesia and Intensive Care, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.
12 Department of Paeditaric Intensive Care, Birmingham Children's Hospital, Birmingham, UK.
13 Department of Inflammation and Aging, University of Birmingham, Birmingham, UK.
14 Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK.
15 Department of Critical Care, Royal Victoria Hospital, Belfast, UK.
16 Department of Respiratory Sciences, University of Leicester, Leicester, UK.