Health, medicine, and medical marketing. Portuguese Journal of Family Medicine and General Practice, [S. l.], v. 24, n. 5, p. 605–16, 2008. DOI: 10.32385/rpmgf.v24i5.10551. Disponível em: https://rpmgf.pt/ojs/index.php/rpmgf/article/view/10551. Acesso em: 17 apr. 2026.