Evidence on fluoridation.
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D015982:Bias; D001859:Bone Neoplasms / Q000139:chemically induced*; D005457:Fluoridation / Q000009:adverse effects*; D006620:Hip Fractures / Q000139:chemically induced*; D006801:Humans; D012516:Osteosarcoma / Q000139:chemically induced*; D012107:Research Design