title: Verbal vs. nonverbal ability, fragile X syndrome, and heterozygous carriers.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005600:Fragile X Syndrome / Q000235:genetics*; D006579:Heterozygote; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D012729:Sex Chromosome Aberrations / Q000235:genetics*