title: How to correctly calculate the proportions of the heterozygotes and homozygotes in the extensive metabolizers of a certain drug-metabolizing enzyme in an ethnic or racial population?
authors.forename: H G
authors.initials: HG
authors.lastname: Xie
mesh_terms: D001189:Aryl Hydrocarbon Hydroxylases; D065731:Cytochrome P-450 CYP2C19; D003577:Cytochrome P-450 Enzyme System / Q000235:genetics*; D005006:Ethnicity / Q000235:genetics*; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D006899:Mixed Function Oxygenases / Q000235:genetics*; D010641:Phenotype; D044469:Racial Groups / Q000235:genetics*
chemical_list: D003577:Cytochrome P-450 Enzyme System; D006899:Mixed Function Oxygenases; D001189:Aryl Hydrocarbon Hydroxylases; C045793:CYP2C19 protein, human; D065731:Cytochrome P-450 CYP2C19