Hirunyakorn, K., and S. . Thaweedej. “The Accuracy of Salivary Biomarkers for Detection of Oral Cancer: A Meta-Analysis”. Journal of The Department of Medical Services, vol. 45, no. 4, Mar. 2021, pp. 193-01, https://he02.tci-thaijo.org/index.php/JDMS/article/view/249813.