1. National cancer control programmes: policies and managerial guidelines. 2nd ed. Geneva: World Health Organization; 2002.
2. How many people are in need of palliative care worldwide?” In: Global atlas of palliative care at the end of life. Geneva: World Health Organization and Worldwide Palliative Care Alliance; 2014.
3. Cancer control: knowledge into action. WHO guide for effective programmes. Module 5: palliative care. Geneva: World Health Organization; 2007.
4. International Narcotics Control Board. Report of the International Narcotics Control Board on the availability of internationally controlled drugs: ensuring adequate access for medical and scientific purposes. New York: United Nations; 2011.
5. World Health Organization Briefing Note. Access to Controlled Medicines Programme: improving access to medications controlled under international drug conventions. Geneva: World Health Organization; 2012.