1. Royal Brompton & Harefield NHS Foundation Trust and Imperial College; NIHR Respiratory Biomedical Research Unit; London UK
2. Harefield Hospital; Harefield Pulmonary Rehabilitation Unit; Middlesex UK
3. King's College London; Department of Palliative Care, Policy and Rehabilitation, Cicely Saunders Institute; London UK
4. University of Nottingham; Hayward House Macmillan Specialist Palliative Care Unit; Nottingham City Hospital NHS Trust Nottingham UK NG5 1PB
5. Cicely Saunders Institute, King's College London; Department of Palliative Care, Policy and Rehabilitation; Denmark Hill London UK SE5 9PJ