1. Paediatric Palliative Care Research Group, Department of Health Science, University of York, York, UK
2. Department of Health Science, University of York, York, UK
3. School for Business and Society, University of York, York, UK
4. Paediatric Palliative Care Research Group Family Advisory Board, York, UK
5. Cicely Saunders Institute and Department of Women’s and Children’s Health, King’s College London, London, UK