Small testes in prepubetal boys with Klinefelter's syndrome.
D002648:Child; D002675:Child, Preschool; D006801:Humans; D007713:Klinefelter Syndrome / Q000473:pathology*; D008297:Male; D010413:Penis / Q000473:pathology; D011627:Puberty; D012728:Sex Chromatin; D013737:Testis / Q000473:pathology*