title: Klinefelter's syndrome.
authors.forename: C
authors.initials: C
authors.lastname: Collins
mesh_terms: D000293:Adolescent; D000375:Aging; D002648:Child; D005837:Genitalia, Male / Q000254:growth & development; D006801:Humans; D007713:Klinefelter Syndrome / Q000235:genetics* / Q000523:psychology; D008297:Male; D000297:Psychology, Adolescent; D014960:X Chromosome