Colo-rectal cancer screening: Colonoscopy versus fecal occult blood testing. Portuguese Journal of Family Medicine and General Practice, [S. l.], v. 28, n. 4, p. 314–6, 2012. DOI: 10.32385/rpmgf.v28i4.10960. Disponível em: https://rpmgf.pt/ojs/index.php/rpmgf/article/view/10960. Acesso em: 12 jan. 2026.