1. School of Health, University of Central Lancashire, Preston, UK
2. School of Healthcare and Medical Science, Bangor University, Gwynedd, UK
3. Evidence-Based Practice Research Centre, Edge Hill University, Ormskirk, UK
4. School of Health Science, University of East Anglia, Norwich Research Park, Norwich, UK
5. Department of Nursing and Community Health, Glasgow Caledonian University, Glasgow, UK
6. Newcastle Clinical Trials Unit, Newcastle University, Newcastle upon Tyne, UK
7. Robertson Centre for Biostatistics, Glasgow University, Glasgow, UK
8. Institute of Health and Society and Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
9. Lancashire Teaching Hospitals NHS Foundation Trust, Royal Preston Hospital, Preston, UK
10. Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
11. Wirral University Teaching Hospitals NHS Foundation Trust, Arrowe Park Hospital, Wirral, Merseyside, UK