title: [Cytogenetic study in 120 cases of Down's syndrome].
mesh_terms: D002869:Chromosome Aberrations; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D006801:Humans; D007621:Karyotyping; D008423:Maternal Age
vernacular_title: Estudo citogenético em 120 casos de síndrome de Down.