1. School of Psychology, Queens University Belfast, Belfast BT7 1NN, UK
2. Cancer Division, University College London Hospitals NHS Foundation Trust, London NW1 2PG, UK
3. Nursing Directorate, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London W6 8RF, UK
4. Sarcoma Unit, The Royal National Orthopaedic Hospital NHS Trust, Stanmore, Middlesex HA7 4LP, UK