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