1. Northern Medical Physics and Clinical Engineering, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Hospital, Newcastle upon Tyne, UK
2. Observational Data Unit, National Institute for Health and Care Excellence, London, UK
3. British Thoracic Society, London, UK
4. Centre for Infection and Immunity, Queen's University of Belfast, Belfast, UK
5. Manchester Academic Health Science Centre, The University of Manchester & The University Hospital of South Manchester NHS Foundation Trust, Wythenshawe, UK