Comparison of effect of prophylactic administration of ondansetron and placebo on prevention of post induction hypotension in elderly patients undergoing surgery in general anesthesia. J Fatima Jinnah Med Univ [Internet]. 2023 Feb. 16 [cited 2026 Apr. 9];16(2):58-62. Available from: https://jfjmu.com/index.php/ojs/article/view/944