title: [The 48 XXYY syndrome].
mesh_terms: D000293:Adolescent; D003878:Dermatoglyphics; D006801:Humans; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000175:diagnosis / Q000235:genetics; D008297:Male
vernacular_title: Syndrom 48, XXYY.