GUMÁN, N. A.; DE LA HOZ, F. Cost effectiveness of heptavalent pneumococcal conjugate vaccine in populations of high risk in Colombia. Colombia Medica, [S. l.], v. 41, n. 4, p. 315–322, 2011. DOI: 10.25100/cm.v41i4.722. Disponível em: https://colombiamedica.univalle.edu.co/index.php/comedica/article/view/722. Acesso em: 28 feb. 2024.