[A chromosome study on 200 cases of Down's syndrome (author's transl)].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D002875:Chromosomes / Q000648:ultrastructure*; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009030:Mosaicism; D014178:Translocation, Genetic; D014314:Trisomy