1. United Nations. The millennium development goals report. New York, NY: United Nations Department of Economic and Social Affairs. Available at: http://mdgs.un.org/unsd/mdg/resources/static/products/progress2009/mdg_report_2009_en.pdf; 2009[accessed January 17, 2014].
2. Lopez AD, Mathers CD, Ezzati M, et al., editors. Global burden of disease and risk factors. Washington, DC: World Bank. Available at: http://www.ncbi.nlm.nih.gov/books/NBK11812/; 2006[accessed January 17, 2014].
3. World Health Organization. World statistics. Geneva: World Health Organization. Available at: http://www.who.int/whosis/whostat/EN_WHS10_Full.pdf; 2010[accessed January 17, 2014].
4. Jamison D, editor. Disease control priorities in developing countries. NCBI Bookshelf. Available at: http://www.ncbi.nlm.nih.gov/books/NBK11728/; 2006[accessed January 17, 2014].
5. Sasser S, Varghese M, Kellermann A, Lormand JD. Prehospital trauma care systems. Geneva: World Health Organization. Available at: http://www.who.int/violence_injury_prevention/publications/services/39162_oms_new.pdf; 2005[accessed January 17, 2014].