THE IMPORTANCE OF FERRITIN ANALYSIS IN DETERMINING HIDDEN IRON DEFICIENCY ANEMIA IN CHILDREN UNDER 3-7 YEARS OF AGE. MEDICINE, PEDAGOGY AND TECHNOLOGY: THEORY AND PRACTICE, [S. l.], v. 2, n. 5, p. 282–287, 2024. Disponível em: https://universalpublishings.com/index.php/mpttp/article/view/5674. Acesso em: 22 nov. 2024.