Kaewthawee, Narawan, and Sirikalaya Brimson. “The Effects of Ursolic Acid on Cytokine Production via the MAPK Pathways in Leukemic T-Cells”. EXCLI Journal, vol. 12, Feb. 2013, pp. 102-14, https://www.excli.de/index.php/excli/article/view/1133.