title: Childhood of males with the XYY syndrome.
mesh_terms: D000293:Adolescent; D000328:Adult; D001827:Body Height; D001835:Body Weight; D002648:Child; D002653:Child Behavior Disorders / Q000150:complications*; D002657:Child Development; D003417:Criminal Psychology; D003718:Denmark; D004569:Electroencephalography; D005500:Follow-Up Studies; D006760:Hospitalization; D006778:Hospitals, Psychiatric; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D007621:Karyotyping; D008297:Male; D001523:Mental Disorders / Q000150:complications; D008875:Middle Aged; D010551:Personality; D010641:Phenotype; D011996:Records; D012189:Retrospective Studies; D012729:Sex Chromosome Aberrations / Q000150:complications*; D012890:Sleep; D013577:Syndrome