title: Chromosome studies in 101 mentally handicapped Jamaican children.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D004314:Down Syndrome; D005006:Ethnicity; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D007713:Klinefelter Syndrome; D008297:Male; D012729:Sex Chromosome Aberrations; D014314:Trisomy; D014424:Turner Syndrome