PHAN, Thi Dieu Ngoc, Thu Ha DO, Hoang Khue PHAM, Gia Khiem NGUYEN, and Doang Phong NGUYEN. 2024. “THE CURRENT STATUS OF VITAMIN D DEFICIENCY AND SOME RELATED FACTORS IN CHILDREN UNDER 5 YEARS OLD AT NGHE AN OBSTETRICS AND PEDIATRICS HOSPITAL IN 2024”. Vietnam Journal of Nutrition &Amp; Food 21 (1):65-73. https://doi.org/10.56283/1859-0381/718.