title: Non-disjunction and parental karyotypes.
authors.forename: M S
authors.initials: MS
authors.lastname: Gallego
authors.forename: R
authors.initials: R
authors.lastname: Coco
mesh_terms: D000293:Adolescent; D000782:Aneuploidy; D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations / Q000235:genetics*; D002871:Chromosome Banding; D025063:Chromosome Disorders; D002899:Chromosomes, Human, Pair 9; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007621:Karyotyping; D008297:Male; D008423:Maternal Age; D009630:Nondisjunction, Genetic; D010331:Paternal Age