Summary of clinical findings: profiles of children with 47,XXY, 47,XXX and 47,XYY karyotypes.
D002657:Child Development; D005260:Female; D006128:Growth; D006801:Humans; D007231:Infant, Newborn; D007360:Intelligence; D007713:Klinefelter Syndrome / Q000235:genetics*; D008297:Male; D008423:Maternal Age; D010331:Paternal Age; D010641:Phenotype; D012729:Sex Chromosome Aberrations / Q000235:genetics*; D012730:Sex Chromosomes; D014314:Trisomy; D014960:X Chromosome; D014997:XYY Karyotype / Q000235:genetics*