1. Resolution WHA 27.57. WHO Expanded Programme on Immunization. Twenty-seventh World Health Assembly 1974, WHA27/1974/REC/1;World Health Organization,1974
2. Global Vaccine Action Plan;Vaccine,2013
3. An assessment of interactions between global health initiatives and country health systems;World Health Organization Maximizing Positive Synergies Collaborative Group;Lancet,2009
4. Meeting of the Strategic Advisory Group of Experts on immunization, April 2010 – conclusions and recommendations;World Health Organization;Wkly Epidemiol Rec,2010
5. Everybody's business: strengthening health systems to improve health outcomes – WHO's framework for action;World Health Organization,2007