Lunjanasatienchai, K., N. Anuwongnukroh, S. Dechkunakorn, N. Tangjit, S. Roytrakul, D. Arthan, J. Kaewmuangmoon, and H. Sritanaudomchai. “Effect of human exfoliated deciduous teeth stem cell-derived conditioned medium on human periodontal ligament stem cell proliferation and osteogenic differentiation”. Mahidol Dental Journal, vol. 42, no. 2, June 2022, pp. 89-96, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/257012.