It is human. Portuguese Journal of Family Medicine and General Practice, [S. l.], v. 20, n. 6, p. 739–44, 2004. DOI: 10.32385/rpmgf.v20i6.10094. Disponível em: https://rpmgf.pt/ojs/index.php/rpmgf/article/view/10094. Acesso em: 18 apr. 2026.