1. Birmingham Heartlands Hospital University Hospitals Birmingham Birmingham UK
2. School of Biomedical Sciences, Faculty of Biological Sciences University of Leeds Leeds UK
3. Respiratory Physiology University Hospitals Sussex NHS Foundation Trust Brighton UK
4. Department of Respiratory Medicine Leeds Teaching Hospitals NHS Trust Leeds UK
5. Respiratory Physiology Papworth Hospital NHS Foundation Trust Cambridge UK
6. Respiratory Physiology Cambridge University Hospitals NHS Foundation Trust Cambridge UK