Hussain Taher Abbas AL Baaj, Ali Abdul Hussein Handoz, and Aws Rassul hussain Al-Salih. “Surgical Management of Perforated Bowel Due to Typhoid Infection. What Are the Predictive Factors for Pre-Operative Diagnosis in the Endemic Area”. International Journal of Research in Pharmaceutical Sciences, vol. 11, no. 1, Jan. 2020, pp. 676-83, https://ijrps.com/home/article/view/580.