title: [49, XXXXY chromosome abnormality. Description of a case in the neonatal age].
mesh_terms: D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D006801:Humans; D007231:Infant, Newborn; D007713:Klinefelter Syndrome; D008297:Male
vernacular_title: L'anomalia cromosomica 49, XXXXY. Descrizione di un caso in etá neonatale.