1. Faculty of Health & Life Sciences; University of the West of England, Bristol; Bristol UK
2. Louis Dundas Centre for Children's Palliative Care; Institute of Child Health; University College London; London UK
3. Acute Pain Service; United Hospitals Bristol NHS Foundation Trust; Bristol UK
4. Acute Pain Service; United Hospitals Bristol NHS Foundation Trust & University of Bristol; Bristol UK
5. Faculty of Health & Life Sciences; University of the West of England, Bristol & University Hospitals Bristol NHS Foundation Trust; Bristol UK