Poojinya, T., P. Jongstapongpun, and N. Meekaew. “Comparing Ondansetron and Placebo for Reduction of Spinal Anesthesia-Induced Hypotension: a Double-Blind Randomized Control Trial”. Thai Journal of Anesthesiology, vol. 49, no. 5, Aug. 2023, pp. 305-10, https://he02.tci-thaijo.org/index.php/anesthai/article/view/264829.