Ogundele, Olorunfemi, Christianah Adeola ADEYANJU, and Ayodeji Andrew OMOTOSO. “Insurgency in Northern Nigeria: Implication for Polio Eradication in Nigeria”. Sudan Journal of Medical Sciences (SJMS) 14, no. 4 (December 26, 2019). Accessed June 7, 2020. https://knepublishing.com/index.php/SJMS/article/view/5903.