Silva, Cassio Roberto, Eduardo Viglio, and Julia Mançano Quintarelli. 2020. “Geochemical Megaprovince of Fluorine and Endemic Fluorosis in the Middle São Francisco River, Minas Gerais-Bahia, Brazil”. Journal of the Geological Survey of Brazil 3 (3):211-24. https://doi.org/10.29396/jgsb.2020.v3.n3.5.