“Vanillic Acid Suppresses Proliferation and Induces Apoptosis of Gastrointestinal Cancer Cells via Inhibition of mTOR Expression” (2025) Science Essence Journal, 41(1), pp. 39–50. Available at: https://ejournals.swu.ac.th/sej/article/view/16599 (Accessed: 23 October 2026).