[Analysis on the rate of F-/Ca++ in drinking water and its toxic effect in inhabitants].
D000293:Adolescent; D000328:Adult; D000818:Animals; D002118:Calcium / Q000032:analysis*; D002648:Child; D005458:Fluoride Poisoning / Q000209:etiology; D005459:Fluorides / Q000032:analysis*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D051381:Rats; D014881:Water Supply / Q000032:analysis*
D005459:Fluorides; D002118:Calcium