"Grasping the grey": patient understanding and interpretation of an intermediate allele predictive test result for Huntington disease.

Abstract excerpt

Since the discovery of the genetic mutation underlying Huntington disease (HD) and the development of predictive testing, the genetics of HD has generally been described as straightforward; an individual receives either mutation-positive or negative predictive test results. However, in actuality, the genetics of HD is complex and a small proportion of individuals receive an unusual predictive test result called...

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