1 Academic Unit of Primary Medical Care, University of Sheffield, Sheffield.
2 Nottingham University Hospitals NHS Trust, Nottingham.
3 Leeds Teaching Hospitals NHS Trust, St James's University Hospital, Leeds.
4 Reader in Behavioural Science, Centre for Cancer Screening, Prevention and Early Diagnosis, Wolfson Institute of Population Health, Queen Mary University of London, London.
5 Leeds Teaching Hospitals NHS Trust, St James's University Hospital; Leeds Institute of Health Sciences, University of Leeds, Leeds.
6 East Cheshire NHS Trust, Macclesfield.
7 Cwm Taf Morgannwg University Health Board, South Wales.
8 Lung Cancer and Thoracic Surgery Directorate, Wythenshawe Hospital, Manchester University NHS Foundation Trust; Manchester Academic Health Science Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester.
9 Roy Castle Lung Cancer Foundation, Liverpool.
10 National Institute for Health and Care Research (NIHR) GP Academic Clinical Lecturer, Exeter Collaboration for Academic Primary Care, University of Exeter, Exeter.
11 Early Diagnosis and Detection Centre, NIHR Biomedical Research Centre at the Royal Marsden and Institute of Cancer Research, London.
12 NIHR Academic Clinical Lecturer, Centre for Primary Care and Health Services Research, University of Manchester, Manchester.
13 University College London Hospital, London.
14 East Midlands Cancer Alliance, Leicester.
15 Somerset, Wiltshire, Avon and Gloucestershire Cancer Alliance, Glastonbury.
16 Sandwell, West Midlands.
17 UK National Screening Committee, London.
18 University College London Hospitals NHS Foundation Trust, London; Canterbury Christ Church University, Canterbury.