1. Cicely Saunders Institute of Palliative Care, Policy and Rehabilitation, King’s College London, London, UK
2. University of Nottingham, Palliative Medicine, Hayward House Specialist Palliative Care Unit, Nottingham University Hospitals NHS Trust, Nottingham, UK
3. Centre for Human & Applied Physiological Sciences, School of Basic & Medical Biosciences, Faculty of Life Sciences & Medicine, King’s College London, UK