title: Familial chromosomal aberrations. I.
mesh_terms: D000328:Adult; D002648:Child; D002869:Chromosome Aberrations / Q000235:genetics*; D025063:Chromosome Disorders; D003582:Cytogenetics; D004200:Diseases in Twins; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D006801:Humans; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000235:genetics; D008297:Male; D009030:Mosaicism / Q000235:genetics*; D011247:Pregnancy; D014314:Trisomy / Q000235:genetics*; D014424:Turner Syndrome / Q000235:genetics