1. World Health Organization. Polio Eradication and Endgame Strategic Plan 2013–2018. Available at: .
2. Adjuvants and inactivated polio vaccine: a systematic review;Hawken;Vaccine,2012
3. Global Polio Eradication Initiative. Afforable IPV. 2013. Available at . Accessed 06 Dec 2017.
4. Priming after a fractional dose of inactivated poliovirus vaccine;Resik;N Engl J Med,2013
5. Hicking J, Jones R, Nundy N. Improving the affordability of inactivated poliovirus vaccines (IPV) for use in low- and middle-income countries. An economic analysis of strategies to reduce the cost of routine IPV immunization April 20, 2010 PATH Available at Accessed 29 January 2018.