Feeblemindedness and XXXX karyotype.
D001345:Autoradiography; D002675:Child, Preschool; D002869:Chromosome Aberrations; D003878:Dermatoglyphics; D005260:Female; D006570:Heterochromatin; D006801:Humans; D008607:Intellectual Disability / Q000209:etiology*; D007621:Karyotyping; D010641:Phenotype; D012728:Sex Chromatin; D012729:Sex Chromosome Aberrations
D006570:Heterochromatin