Grynpas, M.D., Hancock, R., Sampaio, F.C., Limeback, H., Saintrain, M.V. and Vieira, A.P.G.F. 2012. The relationship between dental fluorosis and tooth fluoride concentration - a study in an endemic area - doi:10.5020/18061230.2011.p355. Brazilian Journal in Health Promotion. 24, 4 (Jan. 2012), 355–360. DOI:https://doi.org/10.5020/2093.