Non-drug treatment of constipation in children: A systematic review. Portuguese Journal of Family Medicine and General Practice, [S. l.], v. 28, n. 1, p. 62–4, 2012. DOI: 10.32385/rpmgf.v28i1.10919. Disponível em: https://rpmgf.pt/ojs/index.php/rpmgf/article/view/10919. Acesso em: 17 apr. 2026.