Socio-economic Status and Infant Mortality Rate: Socio-Economic Status and Infant Mortality Rate. International Journal of Health Studies, [S. l.], v. 7, n. 1, p. 33–36, 2021. DOI: 10.22100/ijhs.v7i1.834. Disponível em: http://ijhs.shmu.ac.ir/index.php/ijhs/article/view/834.. Acesso em: 3 may. 2024.