[On the problem of prevention of calcium and phosphorus insufficiency in children of preschool age].
D002118:Calcium / Q000172:deficiency*; D002136:Calcium, Dietary; D002648:Child; D005395:Fish Oils / Q000628:therapy*; D006801:Humans; D008099:Liver; D010758:Phosphorus / Q000172:deficiency*
D002136:Calcium, Dietary; D005395:Fish Oils; D010758:Phosphorus; D002118:Calcium
CALCIUM/deficiency; FISH LIVER OILS/therapy; PHOSPHORUS/deficiency