Mathew, Alex, Joby John, and Asha Sasikumar. “Validity of Mannheim Peritonitis Index in Predicting Outcome of Patients With Perforative Peritonitis in a Tertiary Care Centre Kerala, India”. International Journal of Research in Medical Sciences 7, no. 11 (October 24, 2019): 4140–4143. Accessed October 14, 2025. https://www.msjonline.org/index.php/ijrms/article/view/7120.