1. Plymouth Marjon University, Plymouth, UK
2. Faculty of Health, University of Plymouth, Plymouth, UK
3. Royal Brompton Hospital, London, UK
4. University Hospitals Birmingham and University of Birmingham, Heartlands Hospital, Birmingham, UK
5. Academic Respiratory Unit, Southmead Hospital, North Bristol Hospital Trust, Bristol, UK
6. School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre and NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, UK
7. University Hospitals Plymouth NHS Trust, Plymouth, UK
8. Royal Devon and Exeter Hospital, University of Exeter, Exeter, UK