title: Down's syndrome. Current stage of cytogenetic research.
mesh_terms: D000650:Amnion / Q000166:cytology; D001345:Autoradiography; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D003376:Counseling; D003581:Cytodiagnosis; D003582:Cytogenetics; D004261:DNA Replication; D004200:Diseases in Twins; D004314:Down Syndrome / Q000453:epidemiology / Q000235:genetics; D005053:Eugenics; D005260:Female; D006801:Humans; D007621:Karyotyping; D008297:Male; D008856:Microscopy, Fluorescence; D009030:Mosaicism; D012730:Sex Chromosomes; D014314:Trisomy