IMPORTANCE OF FERRITIN ANALYSIS IN DETECTING HIDDEN IRON DEFICIENCY ANEMIA IN CHILDREN UP TO 3-7 YEARS OLD. Multidisciplinary Journal of Science and Technology, [S. l.], v. 4, n. 5, p. 202–205, 2024. Disponível em: https://mjstjournal.com/index.php/mjst/article/view/1374. Acesso em: 5 dec. 2024.