This list is for the 1:500 males worldwide that are effected by the karyotype of 47xxy / Klinefelter Syndrome and or the varients. This list is run by those effected and those that are directly connected to those effected, be it a parent, spouse, friends and or professionals. we communicate on this list for support and in an effort to educate each other. This list is not moderated, it is patroled to a sure that those with other than positive intentions are not able to hurt those on this list.