1. Centre for Nurse, Midwife and Allied Health Profession Led Research, University College London Hospitals NHS Foundation Trust, London, UK
2. Cancer Division, University College London Hospitals NHS Foundation Trust, London, UK
3. National Cancer Research Institute, London, UK
4. Department of Statistical Science, University College London, London, UK
5. School of Health Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
6. Centre for Outcomes and Experience Research in Children’s Health, Illness and Disability, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
7. Department of Applied Health Research, University College London, London, UK
8. Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
9. Department of Biomedicine, Biotechnology and Public Health, University of Cádiz, Cádiz, Spain
10. Leeds Institute for Data Analytics, School of Medicine, University of Leeds, Leeds, UK
11. Wessex Teenage and Young Adult Cancer Service, University Hospital Southampton, Southampton, UK
12. Leeds Institute of Medical Research at St James’s, University of Leeds, Leeds, UK