Pakdee, Narupong. “Cost-effectiveness and cost-utility of 2-year follow-up pit and fissure sealant applied on permanent first molars of school children in Phatthalung. A real-world evidence study”. Health Science Journal of Thailand 6, no. 1 (January 24, 2024): 18–26. accessed September 19, 2026. https://he02.tci-thaijo.org/index.php/HSJT/article/view/263265.