title: Klinefelter's and Down's syndrome in an adolescent with abnormal EEG.
mesh_terms: D000293:Adolescent; D000782:Aneuploidy; D004314:Down Syndrome / Q000150:complications* / Q000235:genetics / Q000503:physiopathology; D004569:Electroencephalography; D004827:Epilepsy / Q000150:complications*; D006801:Humans; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000150:complications* / Q000235:genetics / Q000503:physiopathology; D008297:Male; D010641:Phenotype