Water fluoridation. Critical difference was overlooked.
Connett
P
P
D000368:Aged; D005457:Fluoridation; D005459:Fluorides / Q000009:adverse effects*; D009050:Fluorosis, Dental / Q000209:etiology; D050723:Fractures, Bone / Q000139:chemically induced; D006620:Hip Fractures / Q000139:chemically induced*; D006801:Humans; D014954:Wrist Injuries / Q000139:chemically induced*
D005459:Fluorides