Orthopedic protraction maxillary in retrognathism of fissured and nonfissured patients in comparison with ecuadorian norm, 2013. Revista Universidad de Guayaquil, [S. l.], v. 118, n. 1, p. 29–42, 2014. DOI: 10.53591/rug.v118i1.873. Disponível em: https://revistas.ug.edu.ec/index.php/rug/article/view/421. Acesso em: 16 dec. 2025.