Comparison of POSSUM and P-POSSUM as Audit Tools in Patients Undergoing Emergency Laparotomy for Secondary Bacterial Peritonitis. GJMR [Internet]. 2013 May 15 [cited 2026 Feb. 1];13(I3):7-11. Available from: https://medicalresearchjournal.org/index.php/GJMR/article/view/397