References
- Global Polio Eradication Initiative (GPEI) . ( 2006 ). The history. Geneva: Author. Available: http://www.polioeradication.org/history.asp
- Global Polio Eradication Initiative (GPEI) . ( 2010 ). Financial resource requirements. Chart 1 annual expenditure, 1988–2008, financial resource requirements, contributions, funding gap, 2010–2012 . Geneva : Author . Available: http://www.polioeradication.org/fundingbackground.asp
- Kaufmann , J. R. , & Feldbaum , H. ( 2009 ). Diplomacy and the polio immunization boycott in Northern Nigeria . Health Affairs , 28 ( 4 ), 1091 – 1101 .