title: Cancer incidence in relation to fluoride level in water supplies.
mesh_terms: D004739:England; D005458:Fluoride Poisoning; D005459:Fluorides / Q000032:analysis*; D006801:Humans; D009369:Neoplasms / Q000139:chemically induced* / Q000453:epidemiology; D009426:Netherlands; D009520:New Zealand; D014481:United States; D014852:Wales; D014867:Water / Q000032:analysis*; D014881:Water Supply
chemical_list: D014867:Water; D005459:Fluorides