title: The 48,XXYY syndrome.
mesh_terms: D000293:Adolescent; D000328:Adult; D001827:Body Height; D002648:Child; D005260:Female; D005385:Fingers / Q000002:abnormalities; D006177:Gynecomastia / Q000209:etiology; D006801:Humans; D007006:Hypogonadism / Q000209:etiology; D008607:Intellectual Disability / Q000209:etiology; D007621:Karyotyping; D008297:Male; D008875:Middle Aged; D010331:Paternal Age; D012729:Sex Chromosome Aberrations / Q000453:epidemiology; D012730:Sex Chromosomes; D012920:Social Behavior Disorders / Q000209:etiology; D014960:X Chromosome; D014998:Y Chromosome