Ibn E Ali, Paras, Sohail Ilyas, Sohaib Ashraf, Hamayal Zafar, Farwa Kazmi, and Ubaid Ullah Siddiqui. “Comparison of P-Possum and Esas (Emergency Surgery Acuity Score) For Prediction of 30-Day Mortality in Patients Undergoing Emergency Laparotomy”. Pakistan Armed Forces Medical Journal 75, no. 1 (February 28, 2025): 54–58. Accessed October 7, 2025. https://pafmj.org/PAFMJ/article/view/10214.