ORMAZA-ZAMORA, A. M.; TINTÍN-REA, J. F.; RAMÍREZ-VELÁSQUEZ, M. D. C. Prevalence of malocclusions in school children aged 6 and 12 from the Biblián canton. Ecuador. Killkana Salud y Bienestar, v. 4, n. 1, p. 27–33, 2 Apr.2020.