Azhar, Muhammad, Naima Zamir, Mishraz Shaikh, and Inayat ullah. “Enteric Fever Complicated By Intestinal Perforation in Children: A Persistent Health Problem Requiring Surgical Management”. Pakistan Journal of Medical Sciences 36, no. 5 (June 26, 2020). Accessed March 1, 2021. http://pjms.org.pk/index.php/pjms/article/view/2270.