Clinical aspects of disarranged chromosomal structure.
D022004:Chromosome Structures; D002875:Chromosomes; D004314:Down Syndrome / Q000235:genetics*; D006801:Humans; D007713:Klinefelter Syndrome / Q000235:genetics*; D014424:Turner Syndrome / Q000235:genetics*
CHROMOSOMES; KLINEFELTER'S SYNDROME/genetics; MONGOLISM/genetics; TURNER'S SYNDROME/genetics