1. United Nations Millennium Declaration: Resolution adopted by the General Assembly, 55/2,2000
2. Vaccine preventable deaths and the Global Immunization Vision and Strategy, 2006–2015;Centers for Disease Control Prevention;MMWR Morb Mortal Wkly Report,2006
3. Global vaccine action plan: report by the Secretariat,2012
4. The value of investing in vaccines: international vaccines center at John Hopkins Bloomberg School of Public Health,2013
5. Healthy Children, Healthy Future: GAVI Alliance,2014