1. Department of Palliative Care, Addenbrooke's Hospital, Cambridge University Hospitals NHS Trust Foundation, Cambridge, United Kingdom.
2. Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom.
3. University of Cambridge, Cambridge, United Kingdom.
4. TYA Cancer Service, Addenbrooke's Hospital, Cambridge University Hospitals NHS Trust Foundation, Cambridge, United Kingdom.
5. University of Cambridge Medical Library, Cambridge, United Kingdom.