Incidence of major chromosome abnormalities in children.
D000367:Age Factors; D002648:Child; D002869:Chromosome Aberrations / Q000453:epidemiology*; D025063:Chromosome Disorders; D007446:Chromosome Inversion; D005260:Female; D006801:Humans; D008297:Male; D009030:Mosaicism; D012730:Sex Chromosomes; D014178:Translocation, Genetic; D014314:Trisomy