Nguyen , D. T., & Nguyen , M. P. (2023). VITAMIN D DEFICIENCY IN PNEUMONIA CHILDREN FROM 2 MONTHS TO 5 YEARS OLD AT CAN THO CHILDREN HOSPITAL IN 2019-2020. Cantho Journal of Medicine and Pharmacy, 30, 145-152. https://tapchi.ctump.edu.vn/index.php/ctump/article/view/1554