PALACIOS, R. Forgotten, but not forgiven: facing immunization challenges in the 21st century. Colombia Medica, [S. l.], v. 49, n. 3, p. 189–192, 2018. DOI: 10.25100/cm.v49i3.4154. Disponível em: http://colombiamedica.univalle.edu.co/index.php/comedica/article/view/3908. Acesso em: 13 dec. 2025.