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Down syndrome
Down syndrome, or Down's syndrome (primarily in the United Kingdom), trisomy 21, or trisomy G is a chromosomal disorder caused by the presence of all or part of an extra 21st chromosome. It is named after John Langdon Down, the British physician who described the syndrome in 1866. The disorder was...
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Family history of Down syndrome
Having a family history of Down syndrome increases the risk of a person to certain diseases.
Diseases with this Risk Factor:
Advancing maternal age
Advancing maternal age increases the risk of a person to certain diseases.
Diseases with this Risk Factor:
Genetic predisposition to Down syndrome
A genetic predisposition to Down syndrome increases the risk of a person to certain diseases.
