Problems with low birth weight. Colombia Medica, [S. l.], v. 21, n. 1, p. 2–6, 1990. DOI: 10.25100/cm.v21i1.6276. Disponível em: https://colombiamedica.univalle.edu.co/index.php/comedica/article/view/6276. Acesso em: 12 jan. 2026.