Rett Syndrome is the most physically disabling of the autism spectrum disorders, and is diagnosed almost exclusively in females.

Rett Syndrome is caused by sporadic mutations in a gene called MECP2. Rett strikes at random across all ethnic and socioeconomic groups.

For more information about Rett Syndrome visit the Rett Syndrome Research Foundations website at:

www.rsrf.org

Or the Rett Syndrome Research Trust:

www.rsrt.org