1. World Health Organization: Defining sexual health. http://www.who.int/reproductivehealth/publications/sexual_health/defining_sexual_health.pdf (2006). Accessed Nov 2016
2. United Nations: News on Millennium Development Goals. http://www.un.org/millenniumgoals/ (2015). Accessed Nov 2016
3. Langford, M., Sumner, A., Yamin, A.E.: The Millennium Development Goals, Past, Present and Future. Cambridge University Press, Cambridge (2013)
4. United Nations Programme on HIV/AIDS: 2016–2021 Strategy: on the fast-track to end AIDS. http://www.unaids.org/sites/default/files/media_asset/20151027_UNAIDS_PCB37_15_18_EN_rev1.pdf (2016). Accessed Nov 2016
5. United Nations: Universal Declaration of Human Rights. http://www.un.org/en/universal-declaration-human-rights/ (2016). Accessed Nov 2016