1. Yong Loo Lin School of Medicine, National University of Singapore, Singapore
2. Division of Supportive and Palliative Care, National Cancer Centre Singapore, Singapore
3. The Medical Library at the Yong Loo Lin School of Medicine, National University of Singapore, Singapore
4. Department of Family Medicine, National University Hospital Singapore, Singapore
5. Marie Curie Palliative Care Institute, University of Liverpool, Liverpool, UK
6. Centre of Biomedical Ethics, National University of Singapore, Singapore
7. Duke-NUS Medical School, National University of Singapore, Singapore