EFFECTIVENESS OF TEXT MESSAGE INTERVENTION TO IMPROVE KNOWLEDGE, ATTITUDES AND PRACTICES OF PARENTS IN DENTAL HEALTH CARE FOR 3-YEAR-OLD CHILDREN AT SOME PRESCHOOLS IN HA NAM PROVINCE. YHCĐ [Internet]. 2022 Jan. 6 [cited 2026 Sept. 9];63(1). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/266