[Salt fluoridation. I. Survey study and selection of the sample].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003105:Colombia; D003731:Dental Caries / Q000517:prevention & control*; D003753:Dental Health Surveys; D005260:Female; D005459:Fluorides / Q000627:therapeutic use*; D005503:Food Additives; D006801:Humans; D007223:Infant; D008297:Male; D012424:Rural Population; D012965:Sodium Chloride; D014505:Urban Population
D005503:Food Additives; D012965:Sodium Chloride; D005459:Fluorides
Fluoruracion de la sal. I. Estudio censal y selección de la muestra.