title: [Studies on the etiopathogenesis of Down's syndrome in children].
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations; D004314:Down Syndrome / Q000209:etiology*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007621:Karyotyping; D008297:Male; D009030:Mosaicism; D014314:Trisomy
vernacular_title: Badania nad etiopatogeneza zespołu Downa u dzieci.