Anusorntanawat, R. “Prophylactic Phenylephrine Administration between 50 and 100 Micrograms Intravenous Slow Injection on Hypotension and Bradycardia after Spinal Anesthesia in Patients Undergoing Cesarean Section: A Randomized, Single-Blind Study”. Thai Journal of Anesthesiology, vol. 49, no. 1, Jan. 2023, pp. 37-46, https://he02.tci-thaijo.org/index.php/anesthai/article/view/260777.