Pardo, Isaura. “Evolution of an Early Treatment for Skeletal Class II Disgnancies a Responsibility of the Upper Jaw: Clinical Case Report”. URUGUAYAN JOURNAL OF ORTHOPEDIC AND ORTHODONTIC, vol. 2, no. 1, Mar. 2015, pp. 45-46, https://ruoo.uy/index.php/ORTUY/article/view/75.