V., Manoharan G., and Vijayalakshmi G. “Evaluation of Possum Scoring System in Patients Undergoing Laparotomy”. International Surgery Journal 6, no. 2 (January 28, 2019): 512–517. Accessed February 27, 2026. https://www.ijsurgery.com/index.php/isj/article/view/3310.