Kaur , Sharanjit, Anand Sharma, and Harinder Jot Singh. “A Challenge to Polio Eradication: Need to Replace OPV With IPV”. Current Practice in Medical Science Vol. 10 (August 26, 2022): 88–94. Accessed June 13, 2026. https://stm.bookpi.org/CPMS-V10/article/view/8070.