CONTRERAS, Ivania et al. Oral health status in 12 to 17-year-old school children from Valle NonguĆ©n, ConcepciĆ³n, 2013. Journal of Oral Research, [S.l.], v. 2, n. 3, p. 109-113, nov. 2013. ISSN 0719-2479. Disponible en: <https://joralres.com/index.php/JOralRes/article/view/joralres.2013.025>. Fecha de acceso: 19 may 2024 doi: https://doi.org/10.17126/joralres.2013.025.