Jain AK, Sharma D. A prospective study of risk stratification in patients undergoing emergency laparotomy with POSSUM and P-POSSUM. Int Surg J [Internet]. 2016 Dec. 13 [cited 2025 Oct. 28];3(1):207-10. Available from: https://www.ijsurgery.com/index.php/isj/article/view/546