[Studies on sex chromatin].
D000293:Adolescent; D000328:Adult; D002648:Child; D002869:Chromosome Aberrations / Q000473:pathology*; D025063:Chromosome Disorders; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012728:Sex Chromatin; D013194:Staining and Labeling