[Fluoridation of the salt in 4 Colombian cities. (Report on a survey)].
D003731:Dental Caries / Q000517:prevention & control; D003813:Dentistry; D005459:Fluorides; D005503:Food Additives; D005504:Food Analysis; D012965:Sodium Chloride
D005503:Food Additives; D012965:Sodium Chloride; D005459:Fluorides
Fluoruración de la sal en cuatro ciudades colombianas (Informe de la investigacion)