Singh, Rajinder, Harprit Kaur Madan, and Sandeep H. Tayade. “A Prospective Study of Prediction of Outcomes in Perforative Peritonitis Using Apache II Scoring System”. International Surgery Journal 4, no. 8 (July 24, 2017): 2648–2652. Accessed February 20, 2026. https://www.ijsurgery.com/index.php/isj/article/view/1756.