Leelatanon, M., T. Rungnirundorn, P. Chalermkitpanit, and P. Thisayakorn. “Cases Report: Intravenous Ketamine Infusion for Treatment-Resistant Depression”. Journal of the Psychiatric Association of Thailand, Vol. 65, no. 1, Mar. 2020, pp. 63-74, https://he01.tci-thaijo.org/index.php/JPAT/article/view/240792.