1 Centre for Patient Reported Outcomes Research, Institute of Applied Health Research, University of Birmingham, Birmingham, UK. m.calvert@bham.ac.uk.
2 Birmingham Health Partners Centre for Regulatory Science and Innovation, University of Birmingham, Birmingham, UK. m.calvert@bham.ac.uk.
3 DEMAND Hub, University of Birmingham, Birmingham, UK. m.calvert@bham.ac.uk.
4 National Institute for Health Research (NIHR), Applied Research Collaboration (ARC) West Midlands, Birmingham, UK. m.calvert@bham.ac.uk.
5 NIHR Birmingham Biomedical Research Centre, University Hospital Birmingham, University of Birmingham, Birmingham, UK. m.calvert@bham.ac.uk.
6 NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospital Birmingham, University of Birmingham, Birmingham, UK. m.calvert@bham.ac.uk.
7 Health Data Research UK, London, UK. m.calvert@bham.ac.uk.
8 UK SPINE, University of Birmingham, Birmingham, UK. m.calvert@bham.ac.uk.
9 Centre for Patient Reported Outcomes Research, Institute of Applied Health Research, University of Birmingham, Birmingham, UK.
10 Birmingham Health Partners Centre for Regulatory Science and Innovation, University of Birmingham, Birmingham, UK.
11 DEMAND Hub, University of Birmingham, Birmingham, UK.
12 National Institute for Health Research (NIHR), Applied Research Collaboration (ARC) West Midlands, Birmingham, UK.
13 Medicines and Healthcare products Regulatory Agency (MHRA), London, UK.
14 Health Research Authority, London, UK.
15 NIHR Birmingham Biomedical Research Centre, University Hospital Birmingham, University of Birmingham, Birmingham, UK.
16 University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
17 NCRI Consumer Forum National Cancer Research Institute, London, UK.
18 Health Research Authority Patient Involvement Network, London, UK.
19 Patient partner, University of Birmingham, Birmingham, UK.
20 NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospital Birmingham, University of Birmingham, Birmingham, UK.
21 Trauma Science Research, University of Birmingham, Birmingham, UK.
22 Academic Unit of Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
23 Aparito Limited, Wrexham, Wales, UK.
24 Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK.
25 EMD Serono Inc, Healthcare Business of Merck KGaA, Darmstadt, Germany.
26 UK SPINE, University of Birmingham, Birmingham, UK.
27 Imperial College London, London, UK.
28 University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
29 Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
30 Health Data Research UK, London, UK.
31 National Institute of Health Research Biomedical Research Centre for Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust and University College London, Institute of Ophthalmology, London, UK.