title: [Observations on reduced drinking water fluorine content in the control of endemic fluorosis in four years (author's transl)].
mesh_terms: D005458:Fluoride Poisoning / Q000517:prevention & control*; D005461:Fluorine / Q000032:analysis*; D006801:Humans; D013997:Time Factors; D014867:Water / Q000032:analysis*
chemical_list: D014867:Water; D005461:Fluorine