WHO publications in Spanish. Colombia Medica, [S. l.], v. 25, n. 3, p. 126–127, 1994. DOI: 10.25100/cm.v25i3.6527. Disponível em: https://colombiamedica.univalle.edu.co/index.php/comedica/article/view/6527. Acesso em: 26 jan. 2026.