1. King’s College London, Cicely Saunders Institute, Department of Palliative Care, Policy, and Rehabilitation, London, UK
2. Guy’s and St Thomas’ NHS Foundation Trust, London, UK
3. St Christopher’s Hospice, London, UK
4. King’s College Hospital NHS Foundation Trust, London, UK
5. Bristol Randomised Trials Collaboration, School of Social and Community Medicine, University of Bristol, Bristol, UK