1. School of Health Sciences University of Surrey Guildford UK
2. Centre for Outcomes and Experience Research in Children's Health, Illness and Disability Great Ormond Street Hospital for Children NHS Foundation Trust London UK
3. Marie Curie Palliative Care Research Department, Division of Psychiatry University College London London UK
4. Great Ormond Street Hospital for Children NHS Foundation Trust London UK
5. UCL Division of Psychiatry University College London London UK
6. Faculty of Health Social Care & Education London UK
7. Centre for Research in Public Health and Community Care University of Hertfordshire Hertfordshire UK