Hernández-Vásquez, A. and Azañedo, D. (2019) “Tooth brushing and fluoride levels in toothpaste used by peruvian children under 12 years old”, Revista Peruana de Medicina Experimental y Salud Pública, 36(4), pp. 646–52. doi:10.17843/rpmesp.2019.364.4900.