SEX CHROMATIN ABNORMALITIES AMONGST MENTALLY  DEFECTIVE EGYPTIAN CHILDREN.
D000293:Adolescent; D002547:Cerebral Palsy; D002648:Child; D004314:Down Syndrome; D004534:Egypt; D005006:Ethnicity; D006801:Humans; D008607:Intellectual Disability; D007713:Klinefelter Syndrome; D012728:Sex Chromatin
ADOLESCENCE; CEREBRAL PALSY; CHILD; EGYPT; KLINEFELTER'S SYNDROME; MENTAL RETARDATION; MONGOLISM; SEX CHROMATIN