29. PARENTAL KNOWLEDGE OF CHILDREN UNDER 5 YEARS OLD ABOUT DISEASE AND DIPHTHERIA VACCINATION. YHCĐ [Internet]. 2024 July 31 [cited 2026 Sept. 9];65(CĐ 6 - Bệnh viện Lê Văn Thịnh). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/1384