Affiliations

• ¹ North Bristol Lung Centre, Southmead Hospital, Bristol, UK david.smith@nbt.nhs.uk.
• ² Respiratory, Wye Valley NHS Trust, Hereford, UK.
• ³ Centre for Medical Education, Queens University Belfast, Regional Respiratory Centre, Belfast City Hospital, Belfast, UK.
• ⁴ Medical Microbiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
• ⁵ Cardiovascular and Respiratory Studies, Hull York Medical School/University of Hull, Hull, UK.
• ⁶ Institute of Biomedical and Clinical Science, College of Medicine & Health, University of Exeter, Exeter, UK.
• ⁷ Department of Respiratory Medicine, Royal Devon and Exeter Hospital, Exeter, UK.
• ⁸ Oxford Respiratory Trials Unit and Oxford NIHR Biomedical Research Centre, University of Oxford, Oxford, UK.
• ⁹ Pharmacy, University College London Hospitals NHS Foundation Trust, London, UK.