1. Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
2. Health Services Research Unit, University of Aberdeen, Aberdeen, UK
3. Picker Institute Europe, Oxford, UK
4. Nuffield Department of Population Health, University of Oxford, Oxford, UK
5. Lay representative, Oxford, UK
6. Critical Care, Royal Berkshire NHS Foundation Trust, Reading, UK
7. Division of Experience, Participation and Equalities, NHS England, London, UK
8. Saïd Business School, Oxford, UK