theerasopon, Pornpat, and Wipapun Ritthagol. “Historical Social Perspective and Incidence of Cleft Lip and/Or Palate”. Thai Journal of Orthodontics 9, no. 2 (September 14, 2020): 26–32. Accessed May 20, 2024. https://he01.tci-thaijo.org/index.php/THAIORTHO/article/view/249537.