[The incidence maxillofacial anomalies among preschool children].
D002675:Child, Preschool; D006801:Humans; D007569:Jaw Abnormalities / Q000453:epidemiology*; D014071:Tooth Abnormalities / Q000453:epidemiology*
Chastota zubo-cheliustnykh anomaliĭ sredi deteĭ doshkol'nogo vozrasta.