[The study of chromosomes and their anomalies in man].
D002875:Chromosomes; D004314:Down Syndrome; D005826:Genetics, Medical; D006801:Humans; D007713:Klinefelter Syndrome; D012728:Sex Chromatin; D014424:Turner Syndrome
CHROMOSOMES; GENETICS, HUMAN; KLINEFELTER'S SYNDROME; MONGOLISM; SEX CHROMATIN; TURNER'S SYNDROME