The 49,XXXXY syndrome. Clinical and psychological follow-up data.
In this report we give a detailed description of the clinical and psychological follow-up data of three young 49,XXXXY males, paying special attention to changes in intellectual performance and behaviour at different ages.
Borghgraef
M
M
Department of Human Biology U.Z. Gasthuisberg, Leuven, Belgium.
Fryns
J P
JP
Smeets
E
E
Marien
J
J
van Den Berghe
H
H
D005500:Follow-Up Studies; D006801:Humans; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000235:genetics* / Q000503:physiopathology / Q000523:psychology; D007621:Karyotyping; D008297:Male; D011596:Psychomotor Disorders / Q000235:genetics / Q000503:physiopathology / Q000523:psychology; D012729:Sex Chromosome Aberrations / Q000503:physiopathology / Q000523:psychology*; D014960:X Chromosome