1. NHLI, Airways Disease, Faculty of Medicine, Imperial College London, London, UK
2. Royal Brompton and Harefield Hospitals Clinical Group of Guys and St Thomas’ NHS Foundation Trust, London, UK
3. Cicely Saunders Institute of Palliative Care, Policy and Rehabilitation, King’s College London, London, UK
4. Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
5. Department of Respiratory Medicine, Guys and St Thomas’ NHS Foundation Trust, London, UK
6. Department of Physiotherapy, Guys and St Thomas' Hospital NHS Foundation Trust, London UK
7. Department of Intergrated Respiratory Care, King’s College Hospital, London, UK
8. Respiratory and General Internal Medicine, Sheffield Teachning Hospitals Foundation NHS Trust, Sheffield, UK