PAUL, V. A.; ANUSHA, A.; SARATH CHANDRA, A. Evaluation of the validity of POSSUM and P-POSSUM score in predicting the risk of morbidity and mortality respectively in patients undergoing emergency laparotomy. International Surgery Journal, [S. l.], v. 7, n. 10, p. 3224–3229, 2020. DOI: 10.18203/2349-2902.isj20203968. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/6544. Acesso em: 7 nov. 2025.