Mahaseth, Laxman Kumar, Mohamed Shies Sadat, and Chandrasekar J. “Application of Portsmouth Possum Scoring System in Predicting Morbidity and Mortality of Patients Undergoing Gastrointestinal Surgery”. International Journal of Health and Clinical Research 4, no. 4 (February 28, 2021): 30–33. Accessed July 3, 2024. https://ijhcr.com/index.php/ijhcr/article/view/967.