title: New chromosomal abnormalities.
mesh_terms: D000015:Abnormalities, Multiple; D000782:Aneuploidy; D002675:Child, Preschool; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002902:Chromosomes, Human, 16-18; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn