Anwar A, Khan SA, Zeb A, Zeb A, Dr. Shabab Ur Rehman, Ahmad A. Association of Postoperative Outcomes with the Pre-op Categorization Based on the American Society of Anesthesia Class in Emergency General Surgery Patients. Proceedings S.Z.M.C [Internet]. 2024 Sep. 30 [cited 2024 Oct. 4];38(3):167-72. Available from: http://proceedings-szmc.org.pk/index.php/szmc/article/view/535