1. Harefield Pulmonary Rehabilitation Unit, Royal Brompton and Harefield Clinical Group, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
2. Harefield Respiratory Research Group, Royal Brompton and Harefield Clinical Group, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
3. Faculty of Health and Life Sciences, University of Exeter, Exeter, UK
4. National Heart and Lung Institute, Imperial College London, London, UK
5. Faculty of Life Sciences and Medicine, King’s College London, London, UK
6. Health Innovation Wessex, Southampton Science Park, Southampton, UK