Recessive genetic mode of an ADH4 variant in substance dependence in African-Americans: A model of utility of the HWD test.

Although we did not find a significant association between these seven ADH4 variants and AD or DD in AAs in our previous studies, in view of the power variance of association methods and the population-specificity of associations, we did not exclude the possibility that these associations might be significant if adequate statistical power were available, or that other markers might be associated with these phenotypes in this population [ 6 , 7 ].

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