1. Department of Targeted Intervention, University College London, London, United Kingdom
2. Cancer Clinical Trials Unit, University College London Hospitals NHS Foundation Trust, London, United Kingdom
3. Sarcoma Unit, The Royal National Orthopaedic Hospital NHS Trust, Stanmore, Middlesex, United Kingdom
4. Department of Psychology, Edge Hill University, Ormskirk, Lancashire, United Kingdom
5. Patient representative, c/o University College London Hospitals NHS Foundation Trust, London, United Kingdom
6. Department of Psychology, Anglia Ruskin University, Cambridge, United Kingdom
7. Nursing Directorate, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London, United Kingdom
8. Paediatric Directorate, University College London Hospitals NHS Foundation Trust, London, United Kingdom
9. Centre for Nurse, Midwife and Allied Health Profession Led Research (CNMAR), University College London Hospitals NHS Foundation Trust, London, United Kingdom