1. Cancer Pain Relief and Palliative Care in Children;World Health Organization,1998
2. ABC of palliative care. Special problems of children;Goldman;BMJ,1998
3. Estimating the global need for palliative care for children: a cross-sectional analysis;Connor;J. Pain Symptom Manag.,2017
4. National Palliative Care Strategy 2018;Government of Australia,2018
5. Framework on Palliative Care in Canada;Government of Canada,2018