1. Oxford Respiratory Trials Unit and Oxford Pleural Diseases Unit, Churchill Hospital, Oxford, England2National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, England
2. Somerset Lung Centre, Musgrove Park Hospital, Taunton, England
3. Medical Research Council Clinical Trials Unit at University College London, London, England
4. Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, England
5. King’s Mill Hospital, Mansfield, England
6. Medway Maritime Hospital, Gillingham, England
7. Basildon University Hospital, Basildon, England
8. University Hospital of South Manchester NHS Foundation Trust, Manchester, England
9. Royal Wolverhampton Hospital NHS Trust, Wolverhampton, England
10. Rotherham General Hospital, Rotherham, England
11. Vancouver Coastal Health, Vancouver, British Columbia, Canada
12. University of California, Davis, Medical Center, Sacramento
13. Queen Alexandra Hospital, Portsmouth, England
14. Oxford Respiratory Trials Unit and Oxford Pleural Diseases Unit, Churchill Hospital, Oxford, England
15. Cardiff and Vale University Health Board, Cardiff, Wales
16. School of Medicine and Centre for Asthma, Allergy, and Respiratory Research, University of Western Australia, Crawley, Australia
17. Department of Respiratory Medicine, Ipswich Hospital, Ipswich, England
18. Academic Respiratory Unit, Department of Clinical Sciences, Southmead Hospital, University of Bristol, Bristol, England
19. Research Department of Infection and Population Health, Institute of Epidemiology and Healthcare, University College London, London, England