ARLINDA SARI WAHYUNI et al. Gadget Usage and Its Relationship with Mental and Emotional Health in Early Childhood (3–6 Years) at Puskesmas Medan Tuntungan. Sumatera Medical Journal, [S. l.], v. 9, n. 1, p. 11–17, 2026. DOI: 10.32734/sumej.v9i1.22796. Disponível em: https://talenta.usu.ac.id/smj/article/view/22796. Acesso em: 10 jan. 2026.