forty-two adult males -- 10 with klinefelter 's syndrome ( karyotype xxy ) , 17 with normal sex chromosome karyotype ( xy ) but with physical signs of hypogonadism , and 15 presumed to be normal both chromosomally and hormonally -- completed tests of verbal and nonverbal ability .
C0022735
klinefelter 's syndrome
C0020619
hypogonadism