Predictive testing of 25 percent at-risk individuals for Huntington disease (1987-1997).

Abstract excerpt

Before the mutation causing Huntington disease was identified, predictive testing of 25% at-risk persons with a 50% at-risk parent who did not wish to know his/her genetic status, was only possible by exclusion testing. The exclusion test, using linked markers, ensures the parent's wish not to know because the parent's risk is not changed. When mutation analysis became available in 1993, new testing options for...

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