COBO, E. Relationship between nipple sucking and the occurrence of spontaneous ejecto-lactiferous activity in human lactation. Colombia Medica, [S. l.], v. 23, n. 3, p. 99–104, 1992. DOI: 10.25100/cm.v23i3.6349. Disponível em: http://colombiamedica.univalle.edu.co/index.php/comedica/article/view/6349. Acesso em: 7 dec. 2025.