Association for X and Y Variations (AXYS)
AXYS is an advocacy, education and support organization for individuals with X and Y chromosome variations and their families.
Resources
Klinefelter and Other X and Y Chromosome Variations Program Resources
Our Klinefelter and Other X and Y Chromosome Variations Program experts have created this list of resources to help you keep your child safe and well.
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Living with XXY
A blog by Ryan Bregante about what it means to live with Klinefelter syndrome, also known as 47 XXY, including helpful resources, personal stories, local meetings and much more.