Nguyen DT, Nguyen MP. VITAMIN D DEFICIENCY IN PNEUMONIA CHILDREN FROM 2 MONTHS TO 5 YEARS OLD AT CAN THO CHILDREN HOSPITAL IN 2019-2020. CTJUMP [Internet]. 2023 Jun. 21 [cited 2026 Aug. 17];(30):145-52. Available from: https://tapchi.ctump.edu.vn/index.php/ctump/article/view/1554