1. Clinical Trials Research Centre (CTRC); North West Hub for Trials Methodology; University of Liverpool; Liverpool UK
2. Department of Psychological Sciences; North West Hub for Trials Methodology; University of Liverpool; Liverpool UK
3. School of Life and Medical Sciences; University College London; London UK
4. Leeds Institute of Clinical Trials Research (LICTR); University of Leeds; Leeds UK
5. Public Involvement and Engagement; Health Care Research Wales; Cardiff UK
6. Nuffield Department of Primary Care Health Sciences; Health Experiences Institute; University of Oxford; Oxford UK
7. Centre for Primary Care; University of Manchester; Manchester UK
8. MRC Clinical Trials Unit; University College London; London UK
9. Centre for Public Health; Queen's University of Belfast; Belfast UK
10. Nuffield Department of Population Health; Oxford University; Oxford UK