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Have questions? Need support?

The CdLS Foundation staff is here to listen and help.
Call 800.753.2357 Monday through Friday, 8:30 a.m. to 5 p.m., eastern time.

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The Cornelia de Lange Syndrome (CdLS) Foundation is a family support organization that exists to ensure early and accurate diagnosis of CdLS,
promote research into the causes and manifestations of the syndrome, and help people with a diagnosis of CdLS make informed decisions throughout their lives.