title: [MENTAL RETARDATION WITH SEX CHROMOSOME ABNORMALITY].
mesh_terms: D002648:Child; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D004569:Electroencephalography; D006801:Humans; D008607:Intellectual Disability; D007361:Intelligence Tests; D007713:Klinefelter Syndrome; D012728:Sex Chromatin; D012729:Sex Chromosome Aberrations; D014424:Turner Syndrome
keywords: CHILD; CHROMOSOME ABNORMALITIES; ELECTROENCEPHALOGRAPHY; INTELLIGENCE TESTS; KLINEFELTER'S SYNDROME; MENTAL RETARDATION; SEX CHROMATIN; TURNER'S SYNDROME