A OBAIDI, H.; Y ABDUL-QADER, M. Upper lip profile changes. Al-Rafidain Dental Journal, [S. l.], v. 7, n. 2, p. 153–159, 2007. DOI: 10.33899/rden.2007.8960. Disponível em: https://rden.uomosul.edu.iq/index.php/rden/article/view/34636. Acesso em: 12 jan. 2026.