Hintao J, Tianviwat S. Retention rate and methods for improving pit and fissure sealant programs in Thailand. J Public Hlth Dev [Internet]. 2013 Apr. 1 [cited 2024 May 18];11(1):47-61. Available from: https://he01.tci-thaijo.org/index.php/AIHD-MU/article/view/7569