tailieunhanh - Phenotypic Heterogeneity in a DFNA20/26 family segregating a novel ACTG1 mutation

Genetic factors play an important role in hearing loss, contributing to approximately 60 % of cases of congenital hearing loss. Autosomal dominant deafness accounts for approximately 20 % of cases of hereditary hearing loss. Diseases with autosomal dominant inheritance often show pleiotropy, different degrees of penetrance, and variable expressivity. |

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