[Groups of high risk among preschool children and factors responsible for their formation].
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D009017:Morbidity; D012306:Risk; D014455:Ukraine
Kontingenty vysokogo riska sredi deteĭ doshkol'nogo vozrasta i faktory, ikh formiruiushchie.