Gómez-Gómez, S. L., Betancur-Pérez, J. J., Arismendi, J. A., & Gil-Cardona, J. H. (2012). Clinical and radiographic comparison of the pendulum effect with skeletal anchorage versus dentoalveolar anchorage. Revista Facultad De Odontología Universidad De Antioquia, 23(2), 268–291. https://doi.org/10.17533/udea.rfo.9441