Horsuwansak, Thawiporn. “Effectiveness of Single versus Multiple Visits for Endodontic Treatment of Permanent Teeth: Meta-analysis”. Vajira Medical Journal : Journal of Urban Medicine 59, no. 2 (March 24, 2016): 27. accessed September 20, 2026. https://he02.tci-thaijo.org/index.php/VMED/article/view/52992.