Charuwattanapanit, I. (2020) “Neuraxial Morphine: A review of Mechanism of Action and Respiratory Depression”, Thai Journal of Anesthesiology, 46(4), pp. 245–260. available at: https://he02.tci-thaijo.org/index.php/anesthai/article/view/244903 (accessed: 4 October 2026).