[1]
C. C. M. dos Santos, J. C. da S. Rodrigues, M. do R. V. Lopes, R. F. Povinelli, and A. L. M. Terreri, “Fluoride concentration in the public water supply: the retrospective study and the external control”, Rev Inst Adolfo Lutz, vol. 71, no. 3, pp. 507–513, Mar. 2012.