Chiều HN, Linh LTT. The current state of knowledge, attitudes, practices of caregivers of 4-year-old children in Hanoi. TCNCYH [Internet]. 2026Aug.4 [cited 2026Nov.8];204(7):650-6. Available from: https://tapchinghiencuuyhoc.vn/index.php/tcncyh/article/view/5541