[Social-hygenic factors in the rate of disease in preschool children].
D000367:Age Factors; D002675:Child, Preschool; D006801:Humans; D009017:Morbidity; D012426:Russia; D012959:Socioeconomic Factors
Sotsial'no-gigienicheskie faktory zabolevaemosti deteĭ doshkol'nogo vozrasta.