title: Down's syndrome: early diagnosis and cytogenetic findings.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002875:Chromosomes / Q000032:analysis; D004314:Down Syndrome / Q000175:diagnosis* / Q000235:genetics; D005260:Female; D005817:Genetic Counseling; D006801:Humans; D007231:Infant, Newborn; D007621:Karyotyping; D011247:Pregnancy