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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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Health resource

The Association for X and Y Chromosome Variations (AXYS)

AXYS, the Association for X and Y Chromosome Variations, is an advocacy, education and support organization for individuals with X and Y chromosome variations and their families. This includes those with Klinefelter syndrome (47,XXY), Trisomy X (47,XXX), 47,XYY, 48,XXYY, 48,XXXY and related genetic conditions.