Rangsaritwutikul, V., Pukrittayakamee, P., Jirativanont, T., Suphathamwit, A., Chaibanjongwat, T. and Pongraweewan, O. 2025. The Efficacy of Oral Risperidone Solution to Reduce the Incidence and Severity of Postoperative Delirium After Vascular Surgery: A Randomized Controlled Trial. Siriraj Medical Journal. 77, 10 (Oct. 2025), 738–747. DOI:https://doi.org/10.33192/smj.v77i10.276806.