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Pioneering innovative therapies to improve the lives of those with genetic intellectual disabilities

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Cri du Chat

Cri du Chat syndrome

Patients with this rare syndrome are missing a portion of chromosome 5. Discovered by Dr.

Other Genetic Intellectual Disabilities

Genetic intellectual disability can be caused by a number of factors.

Improving Joyful Lives. A new paper on Down syndrome prepared by the Jerome Lejeune Foundation

Down syndrome is a highly complex genetic condition, but it is also a highly complex sociological...

Our Mission

The mission of the Jerome Lejeune Foundation USA is to raise and disburse funds in order to provide research, care, and advocacy to benefit...

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Jerome Lejeune Foundation