Topothai, K. ., N. . Tayana, S. . Prateeptongkum, N. Duangdee, and E. Prateeptongkum. “Cyclooxygenase-2- Inhibiting Activity of Polyphenols in Extracts of Tea from Various Geographic Locations in Thailand”. Journal of The Department of Medical Services, vol. 47, no. 1, Mar. 2022, pp. 119-28, https://he02.tci-thaijo.org/index.php/JDMS/article/view/253517.